remove unused import

lib/ui/status_bar_widget.dart

@@ -6,7 +6,6 @@ import 'package:flutter/material.dart';
 import 'package:photos/core/event_bus.dart';
 import 'package:photos/ente_theme_data.dart';
 import 'package:photos/events/sync_status_update_event.dart';
-import 'package:photos/services/feature_flag_service.dart';
 import 'package:photos/services/sync_service.dart';
 import 'package:photos/ui/header_error_widget.dart';
 import 'package:photos/ui/viewer/search/search_widget.dart';