pytorch

5a48642f - Revert D15717575: [pytorch][PR] Fix bug in multinomial_alias_draw

Revert D15717575: [pytorch][PR] Fix bug in multinomial_alias_draw Differential Revision: D15717575 Original commit changeset: b1154e226d42 fbshipit-source-id: 305ca010bfda88c9295c52e0626d867452c72f84