Remove CUDA 9.2 references conditionals and workarounds (#65070)
Summary:
Title says it all
Pull Request resolved: https://github.com/pytorch/pytorch/pull/65070
Reviewed By: malfet
Differential Revision: D30966464
Pulled By: janeyx99
fbshipit-source-id: e454906fd5d7d321d390939ba5d237e1d9b150f8