[PyTorch] Remove module and operator observer macros. (#38489)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/38489
Remove module and operator observer macros.
ghstack-source-id: 104290763
Test Plan:
a. Verify that QPL is being sent while testing FB4A BI Cloaking:
{F236982877}
b. Verify that AI Benchmark is working on both module and operator level:
https://our.intern.facebook.com/intern/aibench/details/808056762618979
c. Verify that macosx segmentation effect by running buck run xplat/arfx/tracking/segmentation/tools:person_segmentation_demoAppleMac#macosx-x86_64:
{F236982853}
Reviewed By: ljk53
Differential Revision: D21540838
fbshipit-source-id: 516f84ef5673d4ceed38ae152440a5cbacc6ddaa
