Revert "Update LoopingSelectorItem.cs"

This reverts commit b2a0a4f.

Author: ghost1372

dev/DevWinUI.Controls/Controls/Ported/LoopingSelector/LoopingSelectorItem.cs

@@ -11,10 +11,6 @@ public string PrimaryText
     public static DependencyProperty PrimaryTextProperty { get; } =
         DependencyProperty.Register(nameof(PrimaryText), typeof(string), typeof(LoopingSelectorItem), new PropertyMetadata("default"));
 
-    public LoopingSelectorItem()
-    {
-        
-    }
     public override string ToString()
     {
         return PrimaryText;