fix: remove unused SaveMediaObject import from file-upload.md (#2112)

Author: justpilot

symfony/file-upload.md

@@ -67,7 +67,6 @@ use ApiPlatform\Metadata\Get;
 use ApiPlatform\Metadata\GetCollection;
 use ApiPlatform\Metadata\Post;
 use ApiPlatform\OpenApi\Model;
-use App\State\SaveMediaObject;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\HttpFoundation\File\File;
 use Symfony\Component\Serializer\Annotation\Groups;