This patch replaces the usages of `$(RM)` with cross platform `$(call RM,...)` calls which was added in https://github.com/llvm/llvm-project/pull/180224.
This patch replaces the usages of `$(RM)` with cross platform `$(call RM,...)` calls which was added in https://github.com/llvm/llvm-project/pull/180224.