Revert D24004795: [quant] Add FixedQParamsFakeQuantize module
Test Plan: revert-hammer
Differential Revision:
D24004795 (https://github.com/pytorch/pytorch/commit/253918ec557730436fed53be681423534ea0e0bd)
Original commit changeset: fc4797f80842
fbshipit-source-id: 663169e90a2f58e5a89e4d382291ae41c24d0fee
