intel-graphics-compiler: remove buildWithPatches flag and always use patches

  spirv-tools,

  spirv-headers,

  spirv-llvm-translator,

  buildWithPatches ? true,

}:

let

  };

  inherit (llvmPackages_15) lld llvm;

  inherit (if buildWithPatches then opencl-clang else llvmPackages_15) clang libclang;

  inherit (opencl-clang) clang libclang;

  spirv-llvm-translator' = spirv-llvm-translator.override { inherit llvm; };

  # Handholding the braindead build script