Avoid grabbing focus when creating the launch configuration main tab

- Normally one can, in the Run Configurations dialog, use the keyboard
in the left control to navigate each of the launch configurations but
that does work for m2e because the configuration control grabs away the
focus.

org.eclipse.m2e.launching/src/org/eclipse/m2e/ui/internal/launch/MavenLaunchMainTab.java

@@ -412,8 +412,6 @@ public void widgetSelected(SelectionEvent e) {
     runtimeSelector = new MavenRuntimeSelector(mainComposite);
     runtimeSelector.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 4, 1));
     runtimeSelector.addSelectionChangedListener(event -> entriesChanged());
-
-    goalsText.setFocus();
   }
 
   protected Shell getShell() {