Remove cancel_redundant_workflows job (#59608)
Summary:
After https://github.com/pytorch/pytorch/issues/59019 this workflow itself is redundant, so we don't need it anymore
Pull Request resolved: https://github.com/pytorch/pytorch/pull/59608
Reviewed By: jbschlosser, seemethere
Differential Revision: D28952314
Pulled By: driazati
fbshipit-source-id: 41aa33164be8271210ec23b9641e74596114416d
