Enable TCPStore fixed slow test (#52511)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/52511
Re-enable a test that was previously fixed but forgot to be re-enabled.
Test Plan: Imported from OSS
Reviewed By: bdhirsh
Differential Revision: D26586980
Pulled By: H-Huang
fbshipit-source-id: 3cfe21de09036d2b87273680dae351e20125e815
