Revert D25152559: T66557700 Support default argument values of a method
Test Plan: revert-hammer
Differential Revision:
D25152559 (https://github.com/pytorch/pytorch/commit/6bde0ca6d35bb42e1dee67da802ee0ea4ebdb6e1)
Original commit changeset: bbf52f1fbdbf
fbshipit-source-id: 592fdb3078b1ac86cd394adc6c1bfd6b10d829e1
