Fixing linter

Author: datumbox

torchvision/prototype/transforms/_utils.py

@@ -1,7 +1,7 @@
 import numbers
 from collections import defaultdict
 
-from typing import Any, Callable, Dict, Optional, Sequence, Tuple, Type, Union
+from typing import Any, Callable, Dict, Sequence, Tuple, Type, Union
 
 import PIL.Image