[clang] [lld] [llvm] [mlir] Revert "[CMake] Use keyword signature in two additional callsites (#1… (PR #184186)

[Mehdi Amini via cfe-commits]

joker-eph wrote:

Thanks for reverting, in general in the future though please include the revert reason in the commit message

https://github.com/llvm/llvm-project/pull/184186