Fix for Edryn Sprite bug https://github.com/herp-a-derp/Corruption-of-Champions/issues/24

Normally, the EventParser deals with removing a sprite when it's no
longer required, but Edryn (and at least Dominika) don't use the
eventParser to dump you back into the Wet Bitch if you don't take an
action that would kick you back to camp. Added a catch-all sprite remove
to the main bar description function that should clear sprites-- I don't
think theres ever a case where you're supposed to have a sprite just for
walking in there?