Revert D32175959: Merging the implementations of ClearProfiling
Test Plan: revert-hammer
Differential Revision:
D32175959 (https://github.com/pytorch/pytorch/commit/f1754319e32f302a53520ac3608addb31402209b)
Original commit changeset: b335dacce709
fbshipit-source-id: 23d1f75d47f15effc9806bd6e5228007d521b0b3
