Remove onStatusChanged, legacy code.

src/qml/LauncherItemDelegate.qml

@@ -153,12 +153,6 @@ Item {
             width: 100
             height: width
             asynchronous: true
-            onStatusChanged: {
-                if (status === Image.Error) {
-                    console.log("Error loading an app icon, falling back to default.");
-                    iconImage.source = ":/images/icons/apps.png";
-                }
-            }
 
             Spinner {
                 id: spinner