Remove MacOS workflow step to disable XProtect (#100692)
I added this few weeks back trying to fix the flaky dependencies missing on MacOS in https://github.com/pytorch/pytorch/pull/99506. But I think this step is not really needed. More importantly, it starts to hang on MacOS 13, for example https://github.com/pytorch/pytorch/actions/runs/4889081518/jobs/8727397905. The reason is unclear, but this should be removed nonetheless.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/100692
Approved by: https://github.com/ZainRizvi
