waybill namespace报错

app/Http/Controllers/WaybillController.php

@@ -7,8 +7,6 @@ use App\Components\AsyncResponse;
 use App\Region;
 use App\Services\CarTypeService;
 use App\Services\common\ExportService;
-use App\Services\common\ExportService;
-use App\Services\CityService;
 use App\Services\LogisticService;
 use App\Services\OwnerService;
 use App\Services\UnitService;