Revert "Meff Attn Bias (#104310)"
This reverts commit 5453508115a2746eeeaaf306f22b0aec23b543d1.
Reverted https://github.com/pytorch/pytorch/pull/104310 on behalf of https://github.com/DanilBaibak due to PR introduced cuda OOM issue ([comment](https://github.com/pytorch/pytorch/pull/104310#issuecomment-1650171538))
