New rolling duration method moved to manager singleton.

src/engine/objects/NPC.java

@@ -1014,28 +1014,6 @@ public class NPC extends AbstractCharacter {
         return filteredItemList;
     }
 
-    public int getRollingTimeInSeconds(int itemID) {
-
-        ItemTemplate ib = ItemTemplate.templates.get(itemID);
-
-        if (ib == null)
-            return 0;
-
-        if (ItemTemplate.templates.get(itemID).item_type == ItemType.SCROLL)
-            return this.getRank() * 60 * 60 * 3;
-
-        float time;
-
-        if (this.building == null)
-            return 600;
-
-        float rank = this.building.getRank() - 1;
-        float rate = (float) (2.5 * rank);
-        time = (20 - rate);
-        time *= 60;
-        return (int) time;
-    }
-
     public boolean remove() {
 
         Building building;