delete code that died a long time ago (#154802)
Summary:
X-link: https://github.com/pytorch/pytorch/pull/154802
Approved by: https://github.com/Skylion007
Reviewed By: izaitsevfb
Differential Revision: D75767761
fbshipit-source-id: 86068e684b098f4823d62a3d4573a940069a62b6
