merge if else

Java-Approvals/src/main/java/com/gildedrose/GildedRose.java

@@ -19,8 +19,7 @@ class GildedRose {
                 if (item.sellIn < 0) {
                     item.increaseQualityByOne();
                 }
-            } else {
-                if (item.isBackstagePasses()) {
+            } else if (item.isBackstagePasses()) {
                 item.increaseQualityBackstage();
 
                 item.decreaseSellInEachDay();
@@ -39,6 +38,5 @@ class GildedRose {
             }
         }
     }
-    }
 
 }