Generate aten_interned_strings.h automatically (#69407)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/69407
This generates aten_interned_strings.h from `native_functions.yaml`
which is more like how it was originally done. The items deleted from
`interned_strings.h` are duplicates that need to be removed in order
for the code to compile, some of the remaining items may still be out
of date but it is fairly benign even if that's the case.
Test Plan: Imported from OSS
Reviewed By: zou3519
Differential Revision: D32923636
Pulled By: albanD
fbshipit-source-id: a0fd6b3714e70454c5f4ea9b19da5e047d2a4687
