Removing hack so that NCCL is not removed in base Docker commands (#46495)
Summary:
This hack was introduced in 2018 and should be able to b removed now. Previously, all Docker images removed NCCL installation to allow some distributed tests to pass: https://github.com/pytorch/pytorch/issues/5877
This should no longer be the case.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/46495
Reviewed By: malfet
Differential Revision: D24372198
Pulled By: janeyx99
fbshipit-source-id: 6285db77734367f0b8dd363bfd6e9f61a0b58084
