Remove unused variable from signature.

src/engine/devcmd/cmds/AddNPCCmd.java

@@ -79,7 +79,7 @@ public class AddNPCCmd extends AbstractDevCmd {
             }
 
         NPC npc = NPC.createNPC(name, contractID,
-                pc.getLoc(), null, true, zone, (short) level, null);
+                pc.getLoc(), null, zone, (short) level, null);
 
         if (npc != null) {
             WorldGrid.addObject(npc, pc);