Unused method

src/engine/objects/City.java

@@ -646,15 +646,6 @@ public class City extends AbstractWorldObject {
         }
     }
 
-    public boolean isCityZone(Zone zone) {
-
-        if (zone == null || this.parentZone == null)
-            return false;
-
-        return zone.getObjectUUID() == this.parentZone.getObjectUUID();
-
-    }
-
     public AbstractCharacter getOwner() {
 
         if (this.getTOL() == null)