pytorch

2a5aaf1c - Optim foreach cleanup for AdamW (#70484)

Optim foreach cleanup for AdamW (#70484) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/70484 Test Plan: Imported from OSS Reviewed By: anjali411 Differential Revision: D33767869 Pulled By: mikaylagawarecki fbshipit-source-id: 2f5273bbfeea3ed502c5d77da4bebe1674243e86 (cherry picked from commit 2dd9b77917d67223012cfe1719d0919a422c5428)