pytorch

30e7055e - Revert D21078446: [pytorch] Route default warning sync to LOG(WARNING)

Revert D21078446: [pytorch] Route default warning sync to LOG(WARNING) Test Plan: revert-hammer Differential Revision: D21078446 Original commit changeset: b5d36aac54d6 fbshipit-source-id: adff2d7e396b2efdd29eeabfe393fbc55edbe635