Remove "unnecessary" imports in cupertino tests (#75006)

packages/flutter/test/cupertino/action_sheet_test.dart

@@ -3,7 +3,6 @@
 // found in the LICENSE file.
 
 import 'package:flutter/cupertino.dart';
-import 'package:flutter/widgets.dart';
 
 import 'package:flutter_test/flutter_test.dart';
 

packages/flutter/test/cupertino/colors_test.dart

@@ -5,7 +5,6 @@
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:flutter/rendering.dart';
 
 import '../rendering/mock_canvas.dart';
 

packages/flutter/test/cupertino/date_picker_test.dart

@@ -6,7 +6,6 @@ import 'dart:ui';
 
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/rendering.dart';
-import 'package:flutter/semantics.dart';
 import 'package:flutter_test/flutter_test.dart';
 
 // scrolling by this offset will move the picker to the next item

packages/flutter/test/cupertino/dialog_test.dart

@@ -6,7 +6,6 @@ import 'dart:math';
 
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/rendering.dart';
 import 'package:flutter_test/flutter_test.dart';
 
 import '../rendering/mock_canvas.dart';

packages/flutter/test/cupertino/form_row_test.dart

@@ -4,7 +4,6 @@
 
 import 'package:flutter/cupertino.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:flutter/rendering.dart';
 
 void main() {
   testWidgets('Shows prefix', (WidgetTester tester) async {

packages/flutter/test/cupertino/form_section_test.dart

@@ -4,7 +4,6 @@
 
 import 'package:flutter/cupertino.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:flutter/rendering.dart';
 
 void main() {
   testWidgets('Shows header', (WidgetTester tester) async {

packages/flutter/test/cupertino/picker_test.dart

@@ -3,7 +3,6 @@
 // found in the LICENSE file.
 
 import 'package:flutter/cupertino.dart';
-import 'package:flutter/foundation.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';

packages/flutter/test/cupertino/refresh_test.dart

@@ -6,8 +6,6 @@
 import 'dart:async';
 
 import 'package:flutter/cupertino.dart';
-import 'package:flutter/foundation.dart';
-import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
 

packages/flutter/test/cupertino/scrollbar_test.dart

@@ -3,7 +3,6 @@
 // found in the LICENSE file.
 
 import 'package:flutter/cupertino.dart';
-import 'package:flutter/rendering.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
 

packages/flutter/test/cupertino/search_field_test.dart

@@ -3,8 +3,6 @@
 // found in the LICENSE file.
 
 import 'package:flutter/cupertino.dart';
-import 'package:flutter/rendering.dart';
-import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
 
 void main() {

packages/flutter/test/cupertino/segmented_control_test.dart

@@ -2,7 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import 'package:flutter/widgets.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter_test/flutter_test.dart';
 

packages/flutter/test/cupertino/sliding_segmented_control_test.dart

@@ -4,8 +4,6 @@
 
 import 'dart:collection';
 
-import 'package:flutter/gestures.dart';
-import 'package:flutter/widgets.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter_test/flutter_test.dart';

packages/flutter/test/cupertino/switch_test.dart

@@ -6,7 +6,6 @@ import 'package:flutter/cupertino.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/gestures.dart';
 import 'package:flutter/services.dart';
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 
 import '../rendering/mock_canvas.dart';

packages/flutter/test/cupertino/text_field_restoration_test.dart

@@ -4,9 +4,7 @@
 
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/rendering.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:flutter/widgets.dart';
 
 const String text = 'Hello World! How are you? Life is good!';
 const String alternativeText = 'Everything is awesome!!';

packages/flutter/test/cupertino/text_selection_test.dart

@@ -6,9 +6,7 @@ import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/rendering.dart';
 import 'package:flutter/services.dart';
-import 'package:flutter/widgets.dart';
 import '../widgets/editable_text_utils.dart' show textOffsetToPosition;
 
 class MockClipboard {

packages/flutter/test/cupertino/text_selection_toolbar_button_test.dart

@@ -4,8 +4,6 @@
 
 import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/cupertino.dart';
-import 'package:flutter/rendering.dart';
-import 'package:flutter/widgets.dart';
 
 void main() {
   TestWidgetsFlutterBinding.ensureInitialized();

packages/flutter/test/cupertino/text_selection_toolbar_test.dart

@@ -6,7 +6,6 @@ import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/rendering.dart';
-import 'package:flutter/widgets.dart';
 
 import '../widgets/editable_text_utils.dart' show textOffsetToPosition;
 

packages/flutter/test/cupertino/theme_test.dart

@@ -3,7 +3,6 @@
 // found in the LICENSE file.
 
 import 'package:flutter/foundation.dart';
-import 'package:flutter/painting.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter_test/flutter_test.dart';