[null-safety] remove quiver from flutter tests (#62866)

packages/flutter/pubspec.yaml

@@ -23,13 +23,12 @@ dev_dependencies:
   flutter_goldens:
     sdk: flutter
   mockito: 4.1.1
-  quiver: 2.1.3
+  fake_async: 1.1.0-nullsafety
 
   async: 2.5.0-nullsafety # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   boolean_selector: 2.1.0-nullsafety # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   charcode: 1.2.0-nullsafety # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   clock: 1.1.0-nullsafety # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
-  fake_async: 1.1.0-nullsafety # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   file: 5.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   intl: 0.16.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   matcher: 0.12.10-nullsafety # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -43,4 +42,4 @@ dev_dependencies:
   term_glyph: 1.2.0-nullsafety # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   test_api: 0.2.19-nullsafety # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
-# PUBSPEC CHECKSUM: 5a2a
+# PUBSPEC CHECKSUM: 4d3e

packages/flutter/test/foundation/print_test.dart

@@ -5,7 +5,7 @@
 // @dart = 2.8
 
 import 'package:flutter/foundation.dart';
-import 'package:quiver/testing/async.dart';
+import 'package:fake_async/fake_async.dart';
 import '../flutter_test_alternative.dart';
 
 import 'capture_output.dart';

packages/flutter/test/gestures/double_tap_test.dart

@@ -5,7 +5,7 @@
 // @dart = 2.8
 
 import 'package:flutter/gestures.dart';
-import 'package:quiver/testing/async.dart';
+import 'package:fake_async/fake_async.dart';
 
 import '../flutter_test_alternative.dart';
 import 'gesture_tester.dart';

packages/flutter/test/gestures/gesture_tester.dart

@@ -7,7 +7,7 @@
 import 'package:flutter/foundation.dart';
 import 'package:flutter/gestures.dart';
 import 'package:meta/meta.dart';
-import 'package:quiver/testing/async.dart';
+import 'package:fake_async/fake_async.dart';
 
 import '../flutter_test_alternative.dart';
 

packages/flutter/test/painting/decoration_test.dart

@@ -11,7 +11,7 @@ import 'dart:ui' as ui show Image, ImageByteFormat, ColorFilter;
 
 import 'package:flutter/foundation.dart';
 import 'package:flutter/painting.dart';
-import 'package:quiver/testing/async.dart';
+import 'package:fake_async/fake_async.dart';
 
 import '../flutter_test_alternative.dart';
 import '../painting/mocks_for_image_cache.dart';

packages/flutter/test/widgets/binding_first_frame_rasterized_test.dart

@@ -8,7 +8,7 @@ import 'dart:ui';
 
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:quiver/testing/async.dart';
+import 'package:fake_async/fake_async.dart';
 
 void main() {
   test('Deferred frames will trigger the first frame callback', () {

packages/flutter/test/widgets/run_app_async_test.dart

@@ -6,7 +6,7 @@
 
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:quiver/testing/async.dart';
+import 'package:fake_async/fake_async.dart';
 
 void main() {
   setUp(() {