Fix for two players fishing leaving one set busy

Fixes issue #179 for the fishing bug by reverting changes back to
version before implementation of the new eventhandler:
https://github.com/Lothy/MoparClassic/blob/2715f75a20abb56bbcbc85f62b508d630b8f8777/GameServer/src/org/moparscape/msc/gs/event/handler/objectaction/impl/Fishing.scala