TF-4243 Remove setupPreLogin and disposeAfterTest

integration_test/scenarios/labels/delete_a_tag_scenario.dart

@@ -1,4 +1,3 @@
-import 'package:core/utils/platform_info.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:tmail_ui_user/features/mailbox/presentation/widgets/labels/label_list_view.dart';
 import 'package:tmail_ui_user/main/localizations/app_localizations.dart';
@@ -14,11 +13,6 @@ class DeleteATagScenario extends BaseTestScenario
     with ProvisioningLabelScenarioMixin {
   const DeleteATagScenario(super.$);
 
-  @override
-  Future<void> setupPreLogin() async {
-    PlatformInfo.isIntegrationTesting = true;
-  }
-
   @override
   Future<void> runTestLogic() async {
     final threadRobot = ThreadRobot($);
@@ -55,9 +49,4 @@ class DeleteATagScenario extends BaseTestScenario
   Future<void> _expectLabelDeletedByName(String name) async {
     await expectViewInvisible($(LabelListView).$(name));
   }
-
-  @override
-  Future<void> disposeAfterTest() async {
-    PlatformInfo.isIntegrationTesting = false;
-  }
 }