TF-4354 Remove all logic related to Label Visibility in Settings

lib/main/bindings/local/local_bindings.dart

@@ -36,7 +36,6 @@ import 'package:tmail_ui_user/features/mailbox/data/local/state_cache_manager.da
 import 'package:tmail_ui_user/features/mailbox_dashboard/data/local/local_sort_order_manager.dart';
 import 'package:tmail_ui_user/features/manage_account/data/local/language_cache_manager.dart';
 import 'package:tmail_ui_user/features/manage_account/data/local/preferences_setting_manager.dart';
-import 'package:tmail_ui_user/features/manage_account/data/local/setting_cache_manager.dart';
 import 'package:tmail_ui_user/features/offline_mode/manager/new_email_cache_manager.dart';
 import 'package:tmail_ui_user/features/offline_mode/manager/new_email_cache_worker_queue.dart';
 import 'package:tmail_ui_user/features/offline_mode/manager/opened_email_cache_manager.dart';
@@ -95,7 +94,6 @@ class LocalBindings extends Bindings {
     Get.put(SessionHiveCacheClient());
     Get.put(SessionCacheManager(Get.find<SessionHiveCacheClient>()));
     Get.put(LocalSortOrderManager(Get.find<SharedPreferences>()));
-    Get.put(SettingCacheManager(Get.find<SharedPreferences>()));
     Get.put(CachingManager(
       Get.find<MailboxCacheManager>(),
       Get.find<StateCacheManager>(),

lib/main/localizations/app_localizations.dart

@@ -5613,13 +5613,6 @@ class AppLocalizations {
     );
   }
 
-  String get theLabelFeatureIsNowAvailable {
-    return Intl.message(
-      'The label feature is now available.',
-      name: 'theLabelFeatureIsNowAvailable',
-    );
-  }
-
   String get labelAs {
     return Intl.message(
       'Label as',