Disable libtorch testing on MacOS (#62599)
Summary:
Fixes regression introduced by https://github.com/pytorch/pytorch/issues/62402
Pull Request resolved: https://github.com/pytorch/pytorch/pull/62599
Reviewed By: walterddr, driazati
Differential Revision: D30051914
Pulled By: malfet
fbshipit-source-id: a07184b21cc4b2d0ae31fe385bb58a0f665595c6
