[llvm] [llvm] Disable HandleLLVMOptions in runtimes mode (PR #73031)

[Petr Hosek via llvm-commits]

petrhosek wrote:

I'd suggest moving the handling of these common options to a global module in https://github.com/llvm/llvm-project/tree/4a294b5806417aa88c91aa05735b2d557ea5dfe5/cmake/Modules (akin to https://github.com/llvm/llvm-project/blob/4a294b5806417aa88c91aa05735b2d557ea5dfe5/cmake/Modules/HandleOutOfTreeLLVM.cmake).

https://github.com/llvm/llvm-project/pull/73031