Revert D32739976: fix CompositeImplicitAutograd ops improperly labeled
Test Plan: revert-hammer
Differential Revision:
D32739976 (https://github.com/pytorch/pytorch/commit/195b0d0645527d1ad8063ac94de2f1d659db1759)
Original commit changeset: a756dd9e0b87
Original Phabricator Diff: D32739976 (https://github.com/pytorch/pytorch/commit/195b0d0645527d1ad8063ac94de2f1d659db1759)
fbshipit-source-id: 6e898dd5435f31e604588e6e50be1217fa207a54
