Remove "unnecessary" imports in flutter_tools (#81008)

packages/flutter_tools/lib/src/flutter_cache.dart

@@ -21,7 +21,6 @@ import 'cache.dart';
 import 'dart/package_map.dart';
 import 'dart/pub.dart';
 import 'globals.dart' as globals;
-import 'runner/flutter_command.dart';
 
 /// An implementation of the [Cache] which provides all of Flutter's default artifacts.
 class FlutterCache extends Cache {

packages/flutter_tools/test/commands.shard/hermetic/logs_test.dart

@@ -8,7 +8,6 @@ import 'package:flutter_tools/src/base/common.dart';
 import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/commands/logs.dart';
 
-import '../../src/common.dart';
 import '../../src/context.dart';
 import '../../src/test_flutter_command_runner.dart';
 

packages/flutter_tools/test/commands.shard/hermetic/pub_get_test.dart

@@ -14,7 +14,6 @@ import 'package:flutter_tools/src/reporting/reporting.dart';
 import 'package:meta/meta.dart';
 import 'package:test/fake.dart';
 
-import '../../src/common.dart';
 import '../../src/context.dart';
 import '../../src/test_flutter_command_runner.dart';
 

packages/flutter_tools/test/commands.shard/hermetic/shell_completion_test.dart

@@ -12,7 +12,6 @@ import 'package:flutter_tools/src/cache.dart';
 import 'package:flutter_tools/src/commands/shell_completion.dart';
 import 'package:flutter_tools/src/globals_null_migrated.dart' as globals;
 
-import '../../src/common.dart';
 import '../../src/context.dart';
 import '../../src/fakes.dart';
 import '../../src/test_flutter_command_runner.dart';

packages/flutter_tools/test/commands.shard/hermetic/test_test.dart

@@ -20,13 +20,11 @@ import 'package:flutter_tools/src/test/runner.dart';
 import 'package:flutter_tools/src/test/test_wrapper.dart';
 import 'package:flutter_tools/src/test/watcher.dart';
 import 'package:meta/meta.dart';
-import 'package:process/process.dart';
 
 import '../../src/common.dart';
 import '../../src/context.dart';
 import '../../src/fake_devices.dart';
 import '../../src/test_flutter_command_runner.dart';
-import '../../src/testbed.dart';
 
 const String _pubspecContents = '''
 dev_dependencies:

packages/flutter_tools/test/commands.shard/permeable/build_apk_test.dart

@@ -17,7 +17,6 @@ import 'package:flutter_tools/src/globals_null_migrated.dart' as globals;
 import 'package:flutter_tools/src/project.dart';
 import 'package:flutter_tools/src/reporting/reporting.dart';
 import 'package:mockito/mockito.dart';
-import 'package:process/process.dart';
 
 import '../../src/android_common.dart';
 import '../../src/common.dart';

packages/flutter_tools/test/commands.shard/permeable/devices_test.dart

@@ -17,7 +17,6 @@ import 'package:flutter_tools/src/globals.dart' as globals;
 import 'package:flutter_tools/src/web/web_device.dart';
 import 'package:mockito/mockito.dart';
 
-import '../../src/common.dart';
 import '../../src/context.dart';
 import '../../src/fakes.dart';
 import '../../src/test_flutter_command_runner.dart';