Revert D24346771: [caffe2][memonger] Add support for distributed inference predict nets in DAG memonger
Test Plan: revert-hammer
Differential Revision:
D24346771 (https://github.com/pytorch/pytorch/commit/5882f2e540a1d146e44cc2d6f85f6af559aff70f)
Original commit changeset: ad2dd2e63f3e
fbshipit-source-id: 90346f08c890eebe71f068748a8e24e4db88c250
