[clang] clang: Remove unnecessary host-supports-cuda from test (PR #171174)

[Sean Perry via cfe-commits]

perry-ca wrote:

Thanks for the changes.  I applied the change to the wrapper to include `<climits>`.  That solved the compile error when running the clang command.  I appear to have a single target build as running the test with llvm-lit is giving unsupported as the result.  I'll rebuild and try llvm-lit again.

I don't think we need the other change to the .cu file.  Won't that run the clang command twice if the user builds clang multi target.  I think adding the climits solved the problem.

https://github.com/llvm/llvm-project/pull/171174