c2ad0220e0
They were introduced in https://github.com/ziglang/zig/pull/3467 and
5b51f41cee , and become obsolete since
C++-based compiler was removed: all C or C++ sources built by CMake
are just intermediate steps in bootstrapping.
Signed-off-by: Eric Joldasov <bratishkaerik@landless-city.net>