[clang] [Driver] Remove a bunch of unnecessary REQUIRES constraints (PR #94055)

[Jessica Clarke via cfe-commits]

jrtc27 wrote:

Looks like the buildbots' -DDEFAULT_SYSROOT strikes again (boo...). I think adding --sysroot="" is a common way to handle this for tests.

https://github.com/llvm/llvm-project/pull/94055