Quick fixes for named tensor for windows (#25728)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/25728
Two quick fixes:
1) windows doesn't seem to like std::locale, so that got removed.
2) at::empty should call the non-named-tensor overload if the tensor
doesn't have names to avoid re-dispatching. In the long term we'll merge
the at::empty names and no-names overloads.
Test Plan
- [namedtensor ci], but the windows thing isn't easy to test without
running BUILD_NAMEDTENSOR=1 on windows.
Test Plan: Imported from OSS
Differential Revision: D17212059
Pulled By: zou3519
fbshipit-source-id: 58da5ab96d53c4844237ca10fa1b2de4b1052a0c
