fix(filesystem): 移除重复的 SixShop\Core\success_response 函数导入

src/Controller/FileController.php

@@ -10,7 +10,6 @@ use SixShop\Filesystem\Entity\FilesystemUserFileEntity;
 use think\facade\Event;
 use think\Request;
 use think\Response;
-use function SixShop\Core\success_response;
 
 class FileController
 {