remove unneeded imports (#4579)

Removes some unneeded imports and the ignores that go with them.

Author: tarrinneal

packages/camera/camera/test/camera_value_test.dart

@@ -2,14 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// TODO(a14n): remove this import once Flutter 3.1 or later reaches stable (including flutter/flutter#106316)
-// ignore: unnecessary_import
-import 'dart:ui';
-
 import 'package:camera/camera.dart';
-// TODO(a14n): remove this import once Flutter 3.1 or later reaches stable (including flutter/flutter#106316)
-// ignore: unnecessary_import
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
 

packages/camera/camera_web/example/integration_test/camera_service_test.dart

@@ -4,9 +4,6 @@
 
 import 'dart:html';
 import 'dart:js_util' as js_util;
-// TODO(a14n): remove this import once Flutter 3.1 or later reaches stable (including flutter/flutter#106316)
-// ignore: unnecessary_import
-import 'dart:ui';
 
 import 'package:camera_platform_interface/camera_platform_interface.dart';
 import 'package:camera_web/src/camera.dart';

packages/camera/camera_web/example/integration_test/camera_web_test.dart

@@ -4,9 +4,6 @@
 
 import 'dart:async';
 import 'dart:html';
-// TODO(a14n): remove this import once Flutter 3.1 or later reaches stable (including flutter/flutter#106316)
-// ignore: unnecessary_import
-import 'dart:ui';
 
 import 'package:async/async.dart';
 import 'package:camera_platform_interface/camera_platform_interface.dart';

packages/camera/camera_web/lib/src/camera_service.dart

@@ -3,9 +3,6 @@
 // found in the LICENSE file.
 
 import 'dart:html' as html;
-// TODO(a14n): remove this import once Flutter 3.1 or later reaches stable (including flutter/flutter#106316)
-// ignore: unnecessary_import
-import 'dart:ui';
 
 import 'package:camera_platform_interface/camera_platform_interface.dart';
 import 'package:flutter/foundation.dart';

packages/pigeon/platform_tests/shared_test_plugin_code/lib/integration_tests.dart

@@ -2,10 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// TODO(a14n): remove this import once Flutter 3.1 or later reaches stable (including flutter/flutter#10_regularInt31)
-// ignore: unnecessary_import
-import 'dart:typed_data';
-
 import 'package:flutter/foundation.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';

packages/url_launcher/url_launcher/test/src/legacy_api_test.dart

@@ -2,10 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// TODO(a14n): remove this import once Flutter 3.1 or later reaches stable (including flutter/flutter#105648)
-// ignore: unnecessary_import
-import 'dart:ui' show Brightness;
-
 import 'package:flutter/foundation.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/services.dart' show PlatformException;

packages/video_player/video_player_android/test/android_video_player_test.dart

@@ -2,10 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// TODO(a14n): remove this import once Flutter 3.1 or later reaches stable (including flutter/flutter#106316)
-// ignore: unnecessary_import
-import 'dart:ui';
-
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:video_player_android/src/messages.g.dart';

packages/video_player/video_player_avfoundation/test/avfoundation_video_player_test.dart

@@ -2,10 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// TODO(a14n): remove this import once Flutter 3.1 or later reaches stable (including flutter/flutter#106316)
-// ignore: unnecessary_import
-import 'dart:ui';
-
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:video_player_avfoundation/src/messages.g.dart';

packages/webview_flutter/webview_flutter_android/lib/src/android_webview_api_impls.dart

@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// TODO(a14n): remove this import once Flutter 3.1 or later reaches stable (including flutter/flutter#106316)
-// ignore: unnecessary_import
 import 'dart:typed_data';
 import 'dart:ui';
 

packages/webview_flutter/webview_flutter_wkwebview/lib/src/ui_kit/ui_kit.dart

@@ -5,9 +5,6 @@
 import 'dart:math';
 
 import 'package:flutter/foundation.dart';
-// TODO(a14n): remove this import once Flutter 3.1 or later reaches stable (including flutter/flutter#106316)
-// ignore: unnecessary_import
-import 'package:flutter/painting.dart' show Color;
 import 'package:flutter/services.dart';
 
 import '../common/instance_manager.dart';

packages/webview_flutter/webview_flutter_wkwebview/lib/src/ui_kit/ui_kit_api_impls.dart

@@ -5,9 +5,6 @@
 import 'dart:async';
 import 'dart:math';
 
-// TODO(a14n): remove this import once Flutter 3.1 or later reaches stable (including flutter/flutter#106316)
-// ignore: unnecessary_import
-import 'package:flutter/painting.dart' show Color;
 import 'package:flutter/services.dart';
 
 import '../common/instance_manager.dart';

packages/webview_flutter/webview_flutter_wkwebview/test/legacy/web_kit_webview_widget_test.dart

@@ -3,9 +3,6 @@
 // found in the LICENSE file.
 
 import 'dart:math';
-// TODO(a14n): remove this import once Flutter 3.1 or later reaches stable (including flutter/flutter#106316)
-// ignore: unnecessary_import
-import 'dart:typed_data';
 
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';