Remove AI assistant experiment and panel

packages/devtools_app/lib/src/framework/scaffold/scaffold.dart

@@ -11,7 +11,6 @@ import 'package:provider/provider.dart';
 import '../../app.dart';
 import '../../extensions/extension_settings.dart';
 import '../../screens/debugger/debugger_screen.dart';
-import '../../shared/ai_assistant/widgets/ai_assistant_pane.dart';
 import '../../shared/analytics/prompt.dart';
 import '../../shared/config_specific/drag_and_drop/drag_and_drop.dart';
 import '../../shared/config_specific/import_export/import_export.dart';
@@ -317,11 +316,6 @@ class DevToolsScaffoldState extends State<DevToolsScaffold>
             !offlineDataController.showingOfflineData.value;
         final showConsole =
             isConnectedAppView && _currentScreen.showConsole(widget.embedMode);
-        final showAiAssistant =
-            FeatureFlags.aiAssistant.isEnabled &&
-            isConnectedAppView &&
-            _currentScreen.showAiAssistant();
-        final showBottomPane = showConsole || showAiAssistant;
         final containsSingleSimpleScreen =
             widget.screens.length == 1 && widget.screens.first is SimpleScreen;
         final showAppBar =
@@ -353,7 +347,7 @@ class DevToolsScaffoldState extends State<DevToolsScaffold>
               body: OutlineDecoration.onlyTop(
                 child: Padding(
                   padding: widget.appPadding,
-                  child: showBottomPane
+                  child: showConsole
                       ? SplitPane(
                           axis: Axis.vertical,
                           initialFractions: const [0.8, 0.2],
@@ -367,10 +361,7 @@ class DevToolsScaffoldState extends State<DevToolsScaffold>
                             content,
                             BottomPane(
                               screenId: _currentScreen.screenId,
-                              tabs: [
-                                if (showConsole) const ConsolePane(),
-                                if (showAiAssistant) const AiAssistantPane(),
-                              ],
+                              tabs: const [ConsolePane()],
                             ),
                           ],
                         )

packages/devtools_app/lib/src/screens/inspector_v2/inspector_screen.dart

@@ -22,9 +22,6 @@ class InspectorScreen extends Screen {
   @override
   bool showConsole(EmbedMode embedMode) => !embedMode.embedded;
 
-  @override
-  bool showAiAssistant() => true;
-
   @override
   String get docPageId => screenId;
 

packages/devtools_app/lib/src/screens/network/network_screen.dart

@@ -39,9 +39,6 @@ class NetworkScreen extends Screen {
   @override
   String get docPageId => screenId;
 
-  @override
-  bool showAiAssistant() => true;
-
   @override
   Widget buildScreenBody(BuildContext context) => const NetworkScreenBody();
 

packages/devtools_app/lib/src/shared/feature_flags.dart

@@ -77,14 +77,6 @@ extension FeatureFlags on Never {
     enabled: true,
   );
 
-  /// Flag to enable the AI Assistant.
-  ///
-  /// https://github.com/flutter/devtools/issues/9590
-  static final aiAssistant = BooleanFeatureFlag(
-    name: 'aiAssistant',
-    enabled: enableExperiments,
-  );
-
   /// A set of all the boolean feature flags for debugging purposes.
   ///
   /// When adding a new boolean flag, you are responsible for adding it to this
@@ -94,7 +86,6 @@ extension FeatureFlags on Never {
     devToolsExtensions,
     dapDebugging,
     inspectorV2,
-    aiAssistant,
   };
 
   /// A set of all the Flutter channel feature flags for debugging purposes.

packages/devtools_app/lib/src/shared/framework/screen.dart

@@ -290,9 +290,6 @@ abstract class Screen {
   /// Whether to show the console for this screen.
   bool showConsole(EmbedMode embedMode) => false;
 
-  /// Whether to show the AI Assistant for this screen.
-  bool showAiAssistant() => false;
-
   /// Which keyboard shortcuts should be enabled for this screen.
   ShortcutsConfiguration buildKeyboardShortcuts(BuildContext context) =>
       ShortcutsConfiguration.empty();