Remove the Flutter Performance window and associated functionality, #7817

Author: jwren

flutter-idea/src/io/flutter/FlutterInitializer.java

@@ -8,7 +8,6 @@
 import com.google.gson.JsonObject;
 import com.google.gson.JsonPrimitive;
 import com.intellij.ProjectTopics;
-import com.intellij.ide.browsers.BrowserLauncher;
 import com.intellij.ide.plugins.PluginManagerCore;
 import com.intellij.ide.ui.UISettingsListener;
 import com.intellij.notification.*;
@@ -39,8 +38,6 @@
 import io.flutter.editor.FlutterSaveActionsManager;
 import io.flutter.logging.FlutterConsoleLogManager;
 import io.flutter.module.FlutterModuleBuilder;
-import io.flutter.perf.FlutterWidgetPerfManager;
-import io.flutter.performance.FlutterPerformanceViewFactory;
 import io.flutter.preview.PreviewViewFactory;
 import io.flutter.pub.PubRoot;
 import io.flutter.pub.PubRoots;
@@ -165,9 +162,6 @@ public void moduleAdded(@NotNull Project project, @NotNull Module module) {
     // Start watching for survey triggers.
     FlutterSurveyNotifications.init(project);
 
-    // Start the widget perf manager.
-    FlutterWidgetPerfManager.init(project);
-
     // Watch save actions for reload on save.
     FlutterReloadManager.init(project);
 
@@ -326,7 +320,6 @@ public void actionPerformed(@NotNull AnActionEvent event) {
   private void initializeToolWindows(@NotNull Project project) {
     // Start watching for Flutter debug active events.
     FlutterViewFactory.init(project);
-    FlutterPerformanceViewFactory.init(project);
     PreviewViewFactory.init(project);
     RemainingDevToolsViewFactory.init(project);
     DevToolsExtensionsViewFactory.init(project);