Remove tensorFromBlob() from Type (#18779)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/18779
ghimport-source-id: e7453b74fcce0e4f4a9cbce0324992a85272a426
Stack from [ghstack](https://github.com/ezyang/ghstack):
* #18780 Remove tensorWithAllocator() from Type
* **#18779 Remove tensorFromBlob() from Type**
Differential Revision: D14739335
fbshipit-source-id: 8a0619a5b412332efa3b2d60c1edebd53d089d50
