pytorch

a3902c90 - Revert "Fix early expansion of CUDA_TOOLKIT_ROOT_DIR in libtorch builds (#27887)" (#28310)

Revert "Fix early expansion of CUDA_TOOLKIT_ROOT_DIR in libtorch builds (#27887)" (#28310) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/28310 This reverts commit 3d3bff5ff1bc277306d15a3caa96c2a6fdb924bb. Test Plan: Imported from OSS Differential Revision: D18042859 Pulled By: ezyang fbshipit-source-id: cded781dda6fcc04199af6abd07ac09fdc0405de