message: fix double removal of items
diff: @@ -657,9 +657,6 @@ bool Interactive::attach(Npc& npc, Interactive::Pos& to) {
  if(!useWithItem.empty()) {
  size_t it = world.script().getSymbolIndex(useWithItem.c_str());
  - if(it!=size_t(-1) && npc.itemCount(it)>0) {
  - npc.delItem(it,1);
  - }
  npc.setCurrentItem(it);
  }
  