Back out "Back out "Back out "Revert D18542342: Boxed variable dispatch""" (#30650)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/30650
Original commit changeset: 51bb7aac7cb7
ghstack-source-id: 95082205
Test Plan: CI
Differential Revision: D18778190
fbshipit-source-id: 7e9577e88fd0492006b6ea836ec081aea9da6b0c
