Revert D25416620: [pytorch][PR] Add version_info tuple
Test Plan: revert-hammer
Differential Revision:
D25416620 (https://github.com/pytorch/pytorch/commit/e69c2f85f6ff14598614fe364b753b01581d723f)
Original commit changeset: 20b561a0c76a
fbshipit-source-id: 4d73c7ed9191137d5be92236c18c312ce25a1471
