Alias Removal: horn -> horns

Some dolt tagged nearly all of kneesocks_(character) with unicorn. Therefore, I'm requesting the alias from horn to horns to be removed. That way we can have a tag for singular horns for characters like the emerging Kneesocks and the ubiquitous Hoshiguma Yuugi.

Could use single_horn for the time being/future to go along with the other single_* objects with natural pair accompaniments.

We already have the fang/fangs precedent though. I'd be in favor of horn.

Getting repeat failboorus on removing the horn -> horns alias... someone PM me in a day or two and remind me to try again please.

Wouldn't that make horn slightly ambiguous?

how the heck did unicorn come to be with Kneesock? 0_o

Horns can be ambiguous too but I don't think we have a better term for it.