Remove curandStateMTGP32 usage (#21301)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/21301
ghimport-source-id: d4516237a8fb46d1f74c47532e849e5926fc6a79
Differential Revision: D15632929
Pulled By: ezyang
fbshipit-source-id: b5147edb95dc3d71f87581aa2ab002e48c3fef30
