pytorch

b9f764b1 - Use the C++ current RpcAgent pointer to eliminate the unnecessary argument passing from Python world (#32635)

Use the C++ current RpcAgent pointer to eliminate the unnecessary argument passing from Python world (#32635) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/32635 With the source of truth of current RPC agent moved to C++ world, there is no point of passing current RPC agent from Python world to C++ world. ghstack-source-id: 97293316 Test Plan: ``` buck test mode/dev-nosan //caffe2/test/distributed/rpc:rpc_fork buck build mode/dev-nosan //caffe2/test/distributed/rpc:rpc_fork buck-out/gen/caffe2/test/distributed/rpc/rpc_fork\#binary.par -r test_process_group_debug_info ``` Differential Revision: D5703519 fbshipit-source-id: ef7c28bdb1efd293eb6cafe0b0fca7ca80fa08a6