pytorch

eb8fe883 - Revert D17599915: [pytorch][PR] Support 0-batch size for nn.Linear.

Revert D17599915: [pytorch][PR] Support 0-batch size for nn.Linear. Test Plan: revert-hammer Differential Revision: D17599915 Original commit changeset: 78894ce602d9 fbshipit-source-id: 3afd3621e85e5aa8b186d3542f71cef441f3d1bb