Remove empty THCThreadLocal{.h/.cpp} (#23157)
Summary:
These files were removed from the build process and cleaned in https://github.com/pytorch/pytorch/pull/9735.
Closes https://github.com/pytorch/pytorch/issues/22572
Pull Request resolved: https://github.com/pytorch/pytorch/pull/23157
Differential Revision: D16426819
Pulled By: soumith
fbshipit-source-id: aa01aec9fe0e3af456ba8b75ae85d0b1df2a8ed9
