Revert "Fix iterator for ncclCommWatchdog. (#32571)" (#32649)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/32649
This reverts commit 59dbece3716775c3e6f3a428f73fbf1bde8fac4f.
Revert "Enhance NCCL watchdog to acitvely abort communicators for timed out ops. (#32338)"
This reverts commit f86d6c6afd0e981642d20b4269837334ec46c140.
Test Plan: Imported from OSS
Differential Revision: D19584224
Pulled By: ezyang
fbshipit-source-id: 6cc0ad56ba1f3aec5b48db44e8c6c24c8105db4a
