[profiler] remove redundant assert in record_function_ops (#33225)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/33225
This removes a redundant assert statement in `record_function_ops`. In
the else branch in question, we are guaranteed to have `current == &rec`, so
this assert will never fire.
Although, maybe we should add an assert failure when `current == &rec` since it
seems that `current` should always be profiler::record_function_exit.
ghstack-source-id: 98852219
Test Plan: Existing autograd profiler UTs past
Differential Revision: D19849145
fbshipit-source-id: 2014a0d3b9d11e5b64942a54e0fb45e21f46cfa2
