Revert D28387762: Forward AD formulas batch 3
Test Plan: revert-hammer
Differential Revision:
D28387762 (https://github.com/pytorch/pytorch/commit/58348bea06047994e9384528f624049273ecb78a)
Original commit changeset: fc395c92af7e
fbshipit-source-id: 608d704ff5bc560714790a576eaf9ed7f1f44e13
