Revert D29810657: [bc-breaking] reference option for linear produce a pattern instead of reference linear module
Test Plan: revert-hammer
Differential Revision:
D29810657 (https://github.com/pytorch/pytorch/commit/9df605133ef3875d8a829dbddee2b68eee934fb6)
Original commit changeset: 949615bbc017
fbshipit-source-id: 54597d1f9636b0f94ae01c66018ff2592e5c39fc