As sys-apps/systemd wants it disabled (also the wiki guide suggests that) Thanks a lot!
You cannot deselect a config option as far as I know, `select ...` doesn't support that; as for depending on it, that effectively would hide the entry. Since this is disabled by default and the ebuild warns for it, I think there is not much we can do here; feel free to explain if you see another way to do it. See /usr/src/linux/Documentation/kbuild/kconfig-language.txt for reference. PS: I have tried this when I wrote that file.
Ah, ok, thanks for the explanation :)