Clean up macOS x86 binaries build jobs (#116726)
This will stop building binaries for MacOS x86 on PyTorch including nightly and all future releases. If we want this for 2.2, this can be cherry-picked there.
* [x] https://github.com/pytorch/pytorch/pull/116725
* [ ] https://github.com/pytorch/pytorch/pull/116726
Fixes https://github.com/pytorch/pytorch/issues/114602
Pull Request resolved: https://github.com/pytorch/pytorch/pull/116726
Approved by: https://github.com/atalman
