code formatting

src/Shared/HandyControlDemo_Shared/UserControl/Controls/SplitButtonDemoCtl.xaml

@@ -4,7 +4,6 @@
              xmlns:hc="https://handyorg.github.io/handycontrol"
              xmlns:langs="clr-namespace:HandyControlDemo.Properties.Langs"
              xmlns:ex="clr-namespace:HandyControlDemo.Tools.Extension"
-             xmlns:userControl="clr-namespace:HandyControlDemo.UserControl"
              DataContext="{Binding SplitButtonDemo,Source={StaticResource Locator}}">
     <hc:TransitioningContentControl>
         <StackPanel Margin="32" VerticalAlignment="Center">