Stop defining static data in Vec256 (#37767)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/37767
Fixes #37577
Needs tests, and maybe a lint.
Signed-off-by: Edward Z. Yang <ezyang@fb.com>
Test Plan: Imported from OSS
Differential Revision: D21386704
Pulled By: ezyang
fbshipit-source-id: 082c69f9e1f40dc5ed7d371902a4c498f105d99f
