Revert "[docs] Update docs for NegativeBinomial (#45693)" (#63192)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/63192
**Summary**
This reverts commit 402caaeba513929dcfe12df183c764b0ef43f688. As per the
dicussion in #62178, this commit was not needed.
**Test Plan**
Continuous integration.
Test Plan: Imported from OSS
Reviewed By: VitalyFedyunin
Differential Revision: D30293202
Pulled By: SplitInfinity
fbshipit-source-id: 91ee7ad0523a9880605d83fe9712c39df67384a8
