pytorch

9639cb83 - Revert "[pytorch] Layer norm backward speed gain with warp shuffles (#87445)"

Revert "[pytorch] Layer norm backward speed gain with warp shuffles (#87445)" This reverts commit b6f28334bc3276a56d79dea6cb7ed99411556348. Reverted https://github.com/pytorch/pytorch/pull/87445 on behalf of https://github.com/weiwangmeta due to breaking internal builds due to MS compiler