Revert "[CUBLAS][CUDA GRAPHS] (re-re-open of #83461) Explicitly set the workspace for cuBLAS handles (#85447)"
This reverts commit b04b2fa9aa52cacbdc9aaaf477d55b0af845ce81.
Reverted https://github.com/pytorch/pytorch/pull/85447 on behalf of https://github.com/seemethere due to Caused a CUDA memory leak, detected by our performance benchmark suite
