Clean up the stale item in bc white list (#29439)
Summary:
keep the list clean
Pull Request resolved: https://github.com/pytorch/pytorch/pull/29439
Reviewed By: hl475
Differential Revision: D18392445
Pulled By: houseroad
fbshipit-source-id: 2cfe66620e0e9275a0f9590e453c9be10c82124a
