[RESUBMIT] Kill broadcasting from the codegen layer. (#37907)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/37907
Test Plan: Imported from OSS
Differential Revision: D21420872
Pulled By: gchanan
fbshipit-source-id: c782c0c438bcb7e764a97b446f8c3cd168e188f0
