[ROCm] remove sccache wrappers post build (#47947)
Summary:
For ROCm, the CI images serve both the CI jobs as well as public releases. Without removing the sccache wrappers, end users are forced to use sccache. Our users have encountered sccache bugs when using our PyTorch images, so we choose to remove them after the CI build completes. Further, runtime compilation of MIOpen kernels still experiences errors due to sccache.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/47947
Reviewed By: gchanan
Differential Revision: D24994031
Pulled By: malfet
fbshipit-source-id: 65c57ae98e28fc0ce79f754b792d504148c7fcd6
