Revert D31761594: [pytorch][PR] opinfo : nn.functional.embedding
Test Plan: revert-hammer
Differential Revision:
D31761594 (https://github.com/pytorch/pytorch/commit/ed5633d0c5769a534ac4837ed1c3ee36ee2ed944)
Original commit changeset: d24f44728d04
fbshipit-source-id: 72574918300a7982430a0ceb772c9a24de525050
