[FSDP] Remove auto_wrap() (#69356)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/69356
Per title
ghstack-source-id: 144807949
Test Plan: CI
Reviewed By: zhaojuanmao
Differential Revision: D32816150
fbshipit-source-id: 6b4eacc63edd267bc1eb8a1c1d6c753bc581d63a
