Unused method

src/engine/objects/Item.java

@@ -764,13 +764,6 @@ public class Item extends AbstractWorldObject {
             this.bonuses.put(key, amount);
     }
 
-    public void multBonus(AbstractEffectModifier key, float amount) {
-        if (this.bonuses.containsKey(key))
-            this.bonuses.put(key, (this.bonuses.get(key) * amount));
-        else
-            this.bonuses.put(key, amount);
-    }
-
     public synchronized void decrementChargesRemaining() {
         this.chargesRemaining -= 1;
         if (this.chargesRemaining < 0)