pytorch

f46231a2 - Revert D21144940: [pytorch][PR] ci: Change file_diff_from_base to be dynamic

Revert D21144940: [pytorch][PR] ci: Change file_diff_from_base to be dynamic Test Plan: revert-hammer Differential Revision: D21144940 Original commit changeset: ec6d1c2adcf7 fbshipit-source-id: e4f2d37b7e043aadc210ef45b2bba6cf859aeed3