message: remove spell after use
diff: @@ -2046,6 +2046,9 @@ bool Npc::castSpell() {
  currentTarget->lastHitSpell = splId;
  currentTarget->perceptionProcess(*this,nullptr,0,PERC_ASSESSMAGIC);
  }
  + if(active->isSpell()) {
  + invent.delItem(active->clsId(),1,*this);
  + }
  break;
  }
  default:
  