pytorch

77280b11 - Revert D14635130: Improved onnx export for 3 onnx ops.

Revert D14635130: Improved onnx export for 3 onnx ops. Differential Revision: D14635130 Original commit changeset: d54a2b6e2950 fbshipit-source-id: f624e2befdde245cb88435a95508b2a8e6b12e61