Remove FutureMessage from RPC request callback logic (#50026)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/50026
Test Plan: Imported from OSS
Reviewed By: lw
Differential Revision: D25753588
Pulled By: mrshenli
fbshipit-source-id: a6fcda7830901dd812fbf0489b001e6bd9673780
