Revert "[dynamo] Forward OptimizedModule.__setattr__ to the wrapped module (#122098)"
This reverts commit 88ebdbc97c103271766203df6662240e95a09b42.
Reverted https://github.com/pytorch/pytorch/pull/122098 on behalf of https://github.com/huydhn due to Sorry for reverting your change but the distributed failure looks legit as it is also failing in trunk https://hud.pytorch.org/pytorch/pytorch/commit/88ebdbc97c103271766203df6662240e95a09b42 ([comment](https://github.com/pytorch/pytorch/pull/122098#issuecomment-2008483316))
