Revert D25111515: Extra sampling of record function events
Test Plan: revert-hammer
Differential Revision:
D25111515 (https://github.com/pytorch/pytorch/commit/09b974c2d5e25432d0e4c676ee16cecdea20c7e5)
Original commit changeset: 0d572a3636fe
fbshipit-source-id: d558d8052924d937d86db7dd40dc6388e6d28823
