Revert D29361872: [pytorch][PR] det_backward: more robust and with complex support
Test Plan: revert-hammer
Differential Revision:
D29361872 (https://github.com/pytorch/pytorch/commit/fce85480b97d8d79e92e11fbcd3c03a25ae446e0)
Original commit changeset: b1f0fec7e3ac
fbshipit-source-id: feffa74ad65b0b294e0a9b0ee72d245393421f70
