fix(canvas) Tweaks from PR feedback.

- Speed improvement to `projectContentsSameForRefreshRequire`.
- Remove unused code.

editor/src/components/canvas/canvas-utils.ts

@@ -2200,6 +2200,10 @@ export function projectContentsSameForRefreshRequire(
   } else {
     for (const [filename, oldProjectTree] of Object.entries(oldProjectContents)) {
       const newProjectTree = newProjectContents[filename]
+      // No need to check these further if they have the same reference.
+      if (oldProjectTree === newProjectTree) {
+        continue
+      }
       // If the file can't be found in the other tree, the imports are not the same.
       if (newProjectTree == null) {
         return false

editor/src/components/editor/import-utils.ts

@@ -31,7 +31,7 @@ import type {
   NodeModules,
 } from '../../core/shared/project-file-types'
 import { importAlias, importDetails, importsResolution } from '../../core/shared/project-file-types'
-import { walkContentsTreeForParseSuccess, type ProjectContentTreeRoot } from '../assets'
+import type { ProjectContentTreeRoot } from '../assets'
 import type { BuiltInDependencies } from '../../core/es-modules/package-manager/built-in-dependencies-list'
 import { withUnderlyingTarget } from './store/editor-state'
 import * as EP from '../../core/shared/element-path'
@@ -366,13 +366,3 @@ function removeImportDetails(
     importedFromWithin: importedFromWithin,
   }
 }
-
-export function getProjectImports(projectContents: ProjectContentTreeRoot): {
-  [filename: string]: Imports
-} {
-  let result: { [filename: string]: Imports } = {}
-  walkContentsTreeForParseSuccess(projectContents, (filePath, parseSuccess) => {
-    result[filePath] = parseSuccess.imports
-  })
-  return result
-}