Remove unused code

src/main/java/org/example/Product.java

@@ -16,10 +16,6 @@ public class Product {
         this.vatPortion = vatPortion;
     }
 
-    public float getPriceWithVat() {
-        return price + getVat();
-    }
-
     public float getVat() {
         return price * vatPortion;
     }