Revert D28840199: [pytorch][PR] Update version to 1.10
Test Plan: revert-hammer
Differential Revision:
D28840199 (https://github.com/pytorch/pytorch/commit/3453aa44c1ea5239f9cb8b4811976339da47ed83)
Original commit changeset: acc5a93e12a3
fbshipit-source-id: a41eb7c882fe0bf8f9a35ef180e99a7e72f6857d
