Revert D22533824: [PT] add check for duplicated op names in JIT
Test Plan: revert-hammer
Differential Revision:
D22533824 (https://github.com/pytorch/pytorch/commit/d72c9f42009bcf35e491259ca1a08bfcf69cbc0a)
Original commit changeset: b36884531d41
fbshipit-source-id: 8bf840a09b4001cc68858a5dc3540505a0e1abdc
