no more build_pytorch_libs.sh/.bat (#32319)
Summary:
https://github.com/pytorch/pytorch/issues/12918
Pull Request resolved: https://github.com/pytorch/pytorch/pull/32319
Differential Revision: D19544272
Pulled By: soumith
fbshipit-source-id: dd32fa61efa78af908f21c7e54cb6484bf895e54
