combine boolean conditions

GUI/Views/SampleDesigner/DesignerScene.cpp

@@ -214,10 +214,8 @@ void DesignerScene::updateViews(const QModelIndex& parentIndex, IView* parentVie
                 continue;
 
             childView = addViewForItem(item);
-            if (childView) {
-                if (parentView)
-                    parentView->addView(childView, childCount++);
-            }
+            if (childView && parentView)
+                parentView->addView(childView, childCount++);
         }
 
         updateViews(itemIndex, childView);