pytorch

dff58d51 - Optim foreach cleanup for Rprop (#70483)

Optim foreach cleanup for Rprop (#70483) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/70483 Test Plan: Imported from OSS Reviewed By: anjali411 Differential Revision: D33767866 Pulled By: mikaylagawarecki fbshipit-source-id: ffc5ae68eeea8fa09385862b853b731554b77bcb (cherry picked from commit 3a0fe295807bb4519884a1838edeea1a9d222e41)