Remove "mastery" taunt option

[Minky-11649]

@phaseshifter-1283

Ok, this list is going to be way too long.

Waterlog has you covered:

A semi-comprehensive list of things to remove from hots

There have been a lot of remove X threads over the years so I thought it would be convenient it we all just consolidated them in to a single post. Ideally, all future “remove X” threads would be posted here so we can have a comprehensive library potential game improvements from a wide verity of authors. As we all know, the community knows best and a lack of experience is in fact, the best experience. With that said, heres the list of things that need to be removed. Feel free to add to it! Quic…