Revert D25292656: [pytorch][PR] Support torch.distributed.irecv(src=None, ...)
Test Plan: revert-hammer
Differential Revision:
D25292656 (https://github.com/pytorch/pytorch/commit/4eb4db7c30cb39d3d7cd7a25b17f1d6e89a9c8f2)
Original commit changeset: beb018ba0b67
fbshipit-source-id: 5a13055e50ed90731fee431e81c09a1871f6cc03
