Kill THNN function auto generation. (#25322)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/25322
As far as I can tell, none of these are actually used anymore.
Test Plan: Imported from OSS
Differential Revision: D17097301
Pulled By: gchanan
fbshipit-source-id: 649ee0fd549f6e2a875faef7c32b19c70bb969b6
