Init forge support only for valid contracts

src/engine/net/client/msg/ManageNPCMsg.java

@@ -434,10 +434,6 @@ public class ManageNPCMsg extends ClientNetMsg {
                             writer.put((byte) template.modTable);//EffectItemType
                         }
 
-                        // Sanity check.
-
-                        ForgeManager.vendorItemLookup.computeIfAbsent(npc, k -> new ArrayList<>()); // Forge lookup
-
                         writer.putInt(ForgeManager.vendorItemLookup.get(npc).size());
 
                         for (Item item : ForgeManager.vendorItemLookup.get(npc)) {