remove unused nn_path from generate_code (#74563)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/74563
This is used inconsistently in all the generate_code program
invocations. Nevertheless, nothing consumes this flag, so we can
safely remove it.
This was removed in #25353.
ghstack-source-id: 152249818
Test Plan: Should be a no-op, rely on CI.
Reviewed By: malfet
Differential Revision: D35053096
fbshipit-source-id: 3ad19e83ca14649b514dc163c3caff6cbd118e14
(cherry picked from commit a43f05bb43553249caac3c3479986cbc45d286ae)
