[acc_normalizer] Delete is_wrapped after normalization (#71046)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/71046
att
Test Plan:
Added test coverage.
yinghai verifying locally for issue.
Reviewed By: kflu, 842974287
Differential Revision: D33487868
fbshipit-source-id: 5da615f66f50500b30bae84592859305b2971e1e
