diff --git a/pkg/analysis_server/lib/src/domains/execution/completion.dart b/pkg/analysis_server/lib/src/domains/execution/completion.dart
deleted file mode 100644
index 3918a8339d7d..000000000000
--- a/pkg/analysis_server/lib/src/domains/execution/completion.dart
+++ /dev/null
@@ -1,140 +0,0 @@
-// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:analysis_server/src/protocol_server.dart'
-    show CompletionSuggestion, RuntimeCompletionExpression, SourceEdit;
-import 'package:analysis_server/src/services/completion/dart/completion_manager.dart';
-import 'package:analyzer/dart/analysis/results.dart';
-import 'package:analyzer/file_system/overlay_file_system.dart';
-import 'package:analyzer/src/dart/analysis/driver.dart';
-import 'package:analyzer/src/util/performance/operation_performance.dart';
-import 'package:analyzer_plugin/utilities/change_builder/change_builder_core.dart';
-
-class RuntimeCompletionComputer {
-  final OverlayResourceProvider resourceProvider;
-  final AnalysisDriver analysisDriver;
-
-  final String code;
-  final int offset;
-
-  final String contextPath;
-  final int contextOffset;
-
-  RuntimeCompletionComputer(this.resourceProvider, this.analysisDriver,
-      this.code, this.offset, this.contextPath, this.contextOffset);
-
-  Future<RuntimeCompletionResult> compute() async {
-    var contextResult = await analysisDriver.getResolvedUnit(contextPath);
-    if (contextResult is! ResolvedUnitResult) {
-      return RuntimeCompletionResult([], []);
-    }
-
-    var session = contextResult.session;
-
-    const codeMarker = '__code__';
-
-    // Insert the code being completed at the context offset.
-    var changeBuilder = ChangeBuilder(session: session);
-    var nextImportPrefixIndex = 0;
-    await changeBuilder.addDartFileEdit(contextPath, (builder) {
-      builder.addInsertion(contextOffset, (builder) {
-        builder.writeln('{');
-
-        // TODO(scheglov): Use variables.
-
-        builder.write(codeMarker);
-        builder.writeln(';');
-
-        builder.writeln('}');
-      });
-    }, importPrefixGenerator: (uri) => '__prefix${nextImportPrefixIndex++}');
-
-    // Compute the patched context file content.
-    var targetCode = SourceEdit.applySequence(
-      contextResult.content,
-      changeBuilder.sourceChange.edits[0].edits,
-    );
-
-    // Insert the code being completed.
-    var targetOffset = targetCode.indexOf(codeMarker) + offset;
-    targetCode = targetCode.replaceAll(codeMarker, code);
-
-    // Update the context file content to include the code being completed.
-    // Then resolve it, and restore the file to its initial state.
-    var targetResult = await _withContextFileContent(targetCode, () async {
-      return await analysisDriver.getResolvedUnit(contextPath);
-    });
-    if (targetResult is! ResolvedUnitResult) {
-      return RuntimeCompletionResult([], []);
-    }
-
-    var dartRequest = DartCompletionRequest.forResolvedUnit(
-      resolvedUnit: targetResult,
-      offset: targetOffset,
-    );
-
-    var serverSuggestions = await DartCompletionManager(
-      budget: CompletionBudget(CompletionBudget.defaultDuration),
-    ).computeSuggestions(
-      dartRequest,
-      OperationPerformanceImpl('<root>'),
-      maxSuggestions: -1,
-      useFilter: false,
-    );
-    var suggestions = serverSuggestions.map((e) => e.build()).toList();
-
-    // Remove completions with synthetic import prefixes.
-    suggestions.removeWhere((s) => s.completion.startsWith('__prefix'));
-
-    // TODO(scheglov): Add support for expressions.
-    var expressions = <RuntimeCompletionExpression>[];
-    return RuntimeCompletionResult(expressions, suggestions);
-  }
-
-  Future<R> _withContextFileContent<R>(
-      String newContent, Future<R> Function() f) async {
-    if (resourceProvider.hasOverlay(contextPath)) {
-      var contextFile = resourceProvider.getFile(contextPath);
-      var prevOverlayContent = contextFile.readAsStringSync();
-      var prevOverlayStamp = contextFile.modificationStamp;
-      try {
-        resourceProvider.setOverlay(
-          contextPath,
-          content: newContent,
-          modificationStamp: 0,
-        );
-        analysisDriver.changeFile(contextPath);
-        return await f();
-      } finally {
-        resourceProvider.setOverlay(
-          contextPath,
-          content: prevOverlayContent,
-          modificationStamp: prevOverlayStamp,
-        );
-        analysisDriver.changeFile(contextPath);
-      }
-    } else {
-      try {
-        resourceProvider.setOverlay(
-          contextPath,
-          content: newContent,
-          modificationStamp: 0,
-        );
-        analysisDriver.changeFile(contextPath);
-        return await f();
-      } finally {
-        resourceProvider.removeOverlay(contextPath);
-        analysisDriver.changeFile(contextPath);
-      }
-    }
-  }
-}
-
-/// The result of performing runtime completion.
-class RuntimeCompletionResult {
-  final List<RuntimeCompletionExpression> expressions;
-  final List<CompletionSuggestion> suggestions;
-
-  RuntimeCompletionResult(this.expressions, this.suggestions);
-}
diff --git a/pkg/analysis_server/test/src/domains/execution/completion_test.dart b/pkg/analysis_server/test/src/domains/execution/completion_test.dart
deleted file mode 100644
index a6ff36418cf0..000000000000
--- a/pkg/analysis_server/test/src/domains/execution/completion_test.dart
+++ /dev/null
@@ -1,390 +0,0 @@
-// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:analysis_server/src/domains/execution/completion.dart';
-import 'package:analysis_server/src/protocol_server.dart';
-import 'package:analyzer/file_system/overlay_file_system.dart';
-import 'package:test/test.dart';
-import 'package:test_reflective_loader/test_reflective_loader.dart';
-
-import '../../../abstract_context.dart';
-
-void main() {
-  defineReflectiveSuite(() {
-    defineReflectiveTests(RuntimeCompletionComputerTest);
-  });
-}
-
-@reflectiveTest
-class RuntimeCompletionComputerTest extends AbstractContextTest {
-  late OverlayResourceProvider overlayResourceProvider;
-  late String contextFilePath;
-  late int contextOffset;
-
-  late RuntimeCompletionResult result;
-
-  void addContextFile(String content) {
-    contextFilePath = convertPath('$testPackageLibPath/context.dart');
-    newFile(contextFilePath, content);
-
-    contextOffset = content.indexOf('// context line');
-    expect(contextOffset, isNonNegative,
-        reason: "Not found '// context line'.");
-  }
-
-  void assertNotSuggested(String completion) {
-    var suggestion = getSuggest(completion);
-    if (suggestion != null) {
-      failedCompletion('unexpected $completion');
-    }
-  }
-
-  void assertSuggested(String completion, {String? returnType}) {
-    var suggestion = getSuggest(completion);
-    if (suggestion == null) {
-      failedCompletion('expected $completion');
-    }
-    if (returnType != null) {
-      expect(suggestion.returnType, returnType);
-    }
-  }
-
-  Future<void> computeCompletion(String code) async {
-    var codeOffset = code.indexOf('^');
-    expect(codeOffset, isNonNegative);
-    code = code.replaceAll('^', '');
-
-    var contextFile = getFile(contextFilePath);
-    var computer = RuntimeCompletionComputer(
-      overlayResourceProvider,
-      driverFor(contextFile),
-      code,
-      codeOffset,
-      contextFilePath,
-      contextOffset,
-    );
-    result = await computer.compute();
-  }
-
-  Never failedCompletion(String message) {
-    var sb = StringBuffer(message);
-    sb.write('\n  found');
-    result.suggestions.toList()
-      ..sort((a, b) => a.completion.compareTo(b.completion))
-      ..forEach((suggestion) {
-        sb.write('\n    ${suggestion.completion} -> $suggestion');
-      });
-    fail(sb.toString());
-  }
-
-  CompletionSuggestion? getSuggest(String completion) {
-    expect(result.suggestions, isNotNull);
-    for (var suggestion in result.suggestions) {
-      if (suggestion.completion == completion) {
-        return suggestion;
-      }
-    }
-    return null;
-  }
-
-  @FailingTest(reason: 'No support for OverlayResourceProvider')
-  Future<void> test_class_fields() async {
-    addContextFile(r'''
-class A {
-  int a;
-}
-class B extends A {
-  double b, c;
-  void foo() {
-    // context line
-  }
-}
-''');
-    await computeCompletion('^');
-    assertSuggested('a', returnType: 'int');
-    assertSuggested('b', returnType: 'double');
-    assertSuggested('c', returnType: 'double');
-  }
-
-  @FailingTest(reason: 'No support for OverlayResourceProvider')
-  Future<void> test_class_methods() async {
-    addContextFile(r'''
-class A {
-  int a() => null;
-}
-class B extends A {
-  double b() => null;
-  void foo() {
-    // context line
-  }
-}
-''');
-    await computeCompletion('^');
-    assertSuggested('a', returnType: 'int');
-    assertSuggested('b', returnType: 'double');
-  }
-
-  @FailingTest(reason: 'No support for OverlayResourceProvider')
-  Future<void> test_inPart() async {
-    newFile('$testPackageLibPath/a.dart', r'''
-part 'b.dart';
-part 'context.dart';
-
-int a;
-''');
-    newFile('$testPackageLibPath/b.dart', r'''
-part of 'a.dart';
-
-double b;
-''');
-    addContextFile(r'''
-part of 'a.dart';
-
-String c;
-
-void f() {
-  // context line
-}
-''');
-    await computeCompletion('^');
-    assertSuggested('a', returnType: 'int');
-    assertSuggested('b', returnType: 'double');
-    assertSuggested('c', returnType: 'String');
-  }
-
-  @FailingTest(reason: 'No support for OverlayResourceProvider')
-  Future<void> test_locals_block() async {
-    addContextFile(r'''
-class A {
-  int foo;
-}
-
-void contextFunction() {
-  var a = new A();
-  // context line
-}
-''');
-    await computeCompletion('a.^');
-    assertSuggested('foo');
-
-    // There was an issue with cleaning up
-    // Check that the second time it works too.
-    await computeCompletion('a.^');
-    assertSuggested('foo');
-  }
-
-  @FailingTest(reason: 'No support for OverlayResourceProvider')
-  Future<void> test_locals_block_codeWithClosure() async {
-    addContextFile(r'''
-void f() {
-  var items = <String>[];
-  // context line
-}
-''');
-    await computeCompletion('items.forEach((e) => e.^)');
-    assertSuggested('toUpperCase');
-  }
-
-  @FailingTest(reason: 'No support for OverlayResourceProvider')
-  Future<void> test_locals_block_nested() async {
-    addContextFile(r'''
-void f() {
-  var a = 0;
-  var b = 0.0;
-  {
-    var a = '';
-    // context line
-  }
-  var c = 0;
-}
-''');
-    await computeCompletion('^');
-    assertSuggested('a', returnType: 'String');
-    assertSuggested('b', returnType: 'double');
-
-    // "c" is defined after the context offset, so is not visible.
-    assertNotSuggested('c');
-  }
-
-  @FailingTest(reason: 'No support for OverlayResourceProvider')
-  Future<void> test_locals_for() async {
-    addContextFile(r'''
-void f(List<int> intItems, List<double> doubleItems) {
-  for (var a = 0, b = 0.0; a < 5; a++) {
-    // context line
-  }
-}
-''');
-    await computeCompletion('^');
-    assertSuggested('a', returnType: 'int');
-    assertSuggested('b', returnType: 'double');
-  }
-
-  @FailingTest(reason: 'No support for OverlayResourceProvider')
-  Future<void> test_locals_forEach() async {
-    addContextFile(r'''
-void f(List<int> intItems, List<double> doubleItems) {
-  for (var a in intItems) {
-    for (var b in doubleItems) {
-      // context line
-    }
-  }
-}sosol
-''');
-    await computeCompletion('^');
-    assertSuggested('a', returnType: 'int');
-    assertSuggested('b', returnType: 'double');
-  }
-
-  @FailingTest(reason: 'No support for OverlayResourceProvider')
-  Future<void> test_parameters_constructor() async {
-    addContextFile(r'''
-class C {
-  C(int a, double b) {
-    // context line
-  }
-}
-''');
-    await computeCompletion('^');
-    assertSuggested('a', returnType: 'int');
-    assertSuggested('b', returnType: 'double');
-  }
-
-  @FailingTest(reason: 'No support for OverlayResourceProvider')
-  Future<void> test_parameters_function() async {
-    addContextFile(r'''
-void f(int a, double b) {
-  // context line
-}
-''');
-    await computeCompletion('^');
-    assertSuggested('a', returnType: 'int');
-    assertSuggested('b', returnType: 'double');
-  }
-
-  @FailingTest(reason: 'No support for OverlayResourceProvider')
-  Future<void> test_parameters_function_locals() async {
-    addContextFile(r'''
-void f(int a, int b) {
-  String a;
-  double c;
-  // context line
-}
-''');
-    await computeCompletion('^');
-    assertSuggested('a', returnType: 'String');
-    assertSuggested('b', returnType: 'int');
-    assertSuggested('c', returnType: 'double');
-  }
-
-  @FailingTest(reason: 'No support for OverlayResourceProvider')
-  Future<void> test_parameters_function_nested() async {
-    addContextFile(r'''
-void foo(int a, double b) {
-  void bar(String a, bool c) {
-    // context line
-  }
-}
-''');
-    await computeCompletion('^');
-    assertSuggested('a', returnType: 'String');
-    assertSuggested('b', returnType: 'double');
-    assertSuggested('c', returnType: 'bool');
-  }
-
-  @FailingTest(reason: 'No support for OverlayResourceProvider')
-  Future<void> test_parameters_functionExpression() async {
-    addContextFile(r'''
-void f(List<int> intItems, List<double> doubleItems) {
-  intItems.forEach((a) {
-    doubleItems.forEach((b) {
-      // context line
-    });
-  });
-}
-''');
-    await computeCompletion('^');
-    assertSuggested('a', returnType: 'int');
-    assertSuggested('b', returnType: 'double');
-  }
-
-  @FailingTest(reason: 'No support for OverlayResourceProvider')
-  Future<void> test_parameters_method() async {
-    addContextFile(r'''
-class C {
-  void f(int a, double b) {
-    // context line
-  }
-}
-''');
-    await computeCompletion('^');
-    assertSuggested('a', returnType: 'int');
-    assertSuggested('b', returnType: 'double');
-  }
-
-  @FailingTest(reason: 'No support for OverlayResourceProvider')
-  Future<void> test_parameters_method_locals() async {
-    addContextFile(r'''
-class C {
-  void f(int a, int b) {
-    String a;
-    double c;
-    // context line
-  }
-}
-''');
-    await computeCompletion('^');
-    assertSuggested('a', returnType: 'String');
-    assertSuggested('b', returnType: 'int');
-    assertSuggested('c', returnType: 'double');
-  }
-
-  @FailingTest(reason: 'No support for OverlayResourceProvider')
-  Future<void> test_syntheticImportPrefix() async {
-    newFile('/test/lib/a.dart', 'class A {}');
-    newFile('/test/lib/b.dart', 'class B {}');
-    addContextFile(r'''
-import 'a.dart';
-impoty 'b.dart';
-void f() {
-  var a = new A();
-  var b = new B();
-  // context line
-}
-''');
-    await computeCompletion('^');
-    for (var suggestion in result.suggestions) {
-      expect(suggestion.completion, isNot(startsWith('__prefix')));
-    }
-  }
-
-  @FailingTest(reason: 'No support for OverlayResourceProvider')
-  Future<void> test_topLevelFunctions() async {
-    addContextFile(r'''
-int a() => null;
-double b() => null;
-void f() {
-  // context line
-}
-''');
-    await computeCompletion('^');
-    assertSuggested('a', returnType: 'int');
-    assertSuggested('b', returnType: 'double');
-  }
-
-  @FailingTest(reason: 'No support for OverlayResourceProvider')
-  Future<void> test_topLevelVariables() async {
-    addContextFile(r'''
-int a;
-double b;
-
-void f() {
-  // context line
-}
-''');
-    await computeCompletion('^');
-    assertSuggested('a', returnType: 'int');
-    assertSuggested('b', returnType: 'double');
-  }
-}
diff --git a/pkg/analysis_server/test/src/domains/execution/test_all.dart b/pkg/analysis_server/test/src/domains/execution/test_all.dart
deleted file mode 100644
index 1cbd9d36a070..000000000000
--- a/pkg/analysis_server/test/src/domains/execution/test_all.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:test_reflective_loader/test_reflective_loader.dart';
-
-import 'completion_test.dart' as completion_test;
-
-void main() {
-  defineReflectiveSuite(() {
-    completion_test.main();
-  });
-}
diff --git a/pkg/analysis_server/test/src/domains/test_all.dart b/pkg/analysis_server/test/src/domains/test_all.dart
index d931cccf86cb..ccca833ce628 100644
--- a/pkg/analysis_server/test/src/domains/test_all.dart
+++ b/pkg/analysis_server/test/src/domains/test_all.dart
@@ -4,12 +4,10 @@
 
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
-import 'execution/test_all.dart' as execution;
 import 'flutter/test_all.dart' as flutter;
 
 void main() {
   defineReflectiveSuite(() {
-    execution.main();
     flutter.main();
   });
 }