cleaned up inventory

Inventory.java

             }else if(items[i].getName().equals("Aged Brie")){
                 updateQualityForBrie(i);
             }else if(items[i].getName().equals("Sulfuras, Hand of Ragnaros")){
-                updateQualityForSulfuras(i);
+                continue;
             }else if((items[i].getQuality() > 0)){              
-                decreaseQualityByOne(i);                   
+                updateQualityForOtherItems(i);               
             }
-
-            if (!items[i].getName().equals("Sulfuras, Hand of Ragnaros")&&(!items[i].getName().equals("Aged Brie"))) {
-                decreaseSellInByOne(i);
-            }
-
-            if (items[i].getSellIn() < 0) {
-                if (!items[i].getName().equals("Aged Brie")) {
-                    if (items[i].getQuality() > 0) {
-                        if (!items[i].getName().equals("Sulfuras, Hand of Ragnaros")) {
-                            decreaseQualityByOne(i);
-                        }
-                    }
-                } 
-            }
-
         }
     }
 
     public void updateQualityForBackstagePasses(int i){
         if (items[i].getSellIn() < 0){
             items[i].setQuality(0);
+            if(items[i].getQuality() > 0){
+                decreaseQualityByOne(i);
+            }
         }else{
             increaseQualityByOne(i);
             if(items[i].getSellIn() < 11) {
         }
     }
 
-    public void updateQualityForSulfuras(int i){
-
+    public void updateQualityForOtherItems(int i){
+        decreaseQualityByOne(i); 
+        decreaseSellInByOne(i);
+        if ((items[i].getSellIn() < 0) && (items[i].getQuality() > 0)) {
+            decreaseQualityByOne(i);
+        }
     }
 }