Remove scalar_check specification and codegen. (#30874)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/30874
These have all been disabled at this point, so there is no difference in the generated code.
Test Plan: Imported from OSS
Differential Revision: D18855990
Pulled By: gchanan
fbshipit-source-id: 03796b2978e23ef9060063f33241a1cbb39f1cf3
