unused import [3/n] (meta-pytorch#3415)

Summary:
Pull Request resolved: meta-pytorch#3415

https://www.flake8rules.com/rules/F401.html

Reviewed By: TroyGarden

Differential Revision: D83739260

fbshipit-source-id: 58abf9e1b26e10288e8fa8cc7ee96800325b3645

Author: aliafzal

torchrec/distributed/benchmark/benchmark_zch/models/models/dlrmv3.py

@@ -9,7 +9,7 @@
 
 import argparse
 from dataclasses import dataclass
-from typing import Any, Dict, List, Optional, Tuple, Union
+from typing import Any, Dict, List, Tuple
 
 import torch
 import torch.nn as nn

torchrec/schema/utils.py

@@ -9,7 +9,6 @@
 
 import inspect
 import typing
-from typing import Any
 
 
 def _is_annot_compatible(prev: object, curr: object) -> bool: