Revert D27121170: [torch] Add cuda support for segment reduction 'max'
Test Plan: revert-hammer
Differential Revision:
D27121170 (https://github.com/pytorch/pytorch/commit/eb5e1fc7137aee8810ff14819e98fa2a4fd7419e)
Original commit changeset: 1c2565f42e29
fbshipit-source-id: 3dd394edcf5ef53c27098b4d0a1dd6fbbabdd506
