public void removeCatchable(CatchablePokemon pokemon){
  if (cachedCatchable.size() > 0) {
    cachedCatchable.remove(pokemon);
  }
}

public void removeCatchable ( CatchablePokemon pokemon ) { if ( cachedCatchable . size ( ) > 0 ) { cachedCatchable . remove ( pokemon ) ; } }
remove a catchable pokemon from the cache
