Register coalescer bug was fixed in ROCm 2.1 (#16923)
Summary:
Remove specialization/workaround for ROCm.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/16923
Differential Revision: D14018521
Pulled By: bddppq
fbshipit-source-id: d88162740bca6dc8ad37397dfbf8c84408074a00
