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
