Delete PopupRoot.axaml.cs

src/PixiEditor.UI.Common/Controls/PopupRoot.axaml.cs

@@ -1,10 +0,0 @@
-using Avalonia;
-using Avalonia.Controls;
-using Avalonia.Controls.Primitives;
-
-namespace PixiEditor.UI.Common.Controls;
-
-public class PopupRoot : TemplatedControl
-{
-}
-