Revert D32104006: [pytorch][PR] Added forward derivatives for neg, diag, inverse, linalg_eig
Test Plan: revert-hammer
Differential Revision:
D32104006 (https://github.com/pytorch/pytorch/commit/88c61b8d06d240464e5f0d26840cb65d22cffe5a)
Original commit changeset: 1f6ace09ee3e
fbshipit-source-id: f9f950b4177e1fe29b9059f4b5dfb9c8c67f479a
