Revert "Fix for Tabpanel is not updating the UI. #4778"

Oqtane.Client/Modules/Controls/TabPanel.razor

@@ -30,8 +30,6 @@ else
     [Parameter]
     public SecurityAccessLevel? Security { get; set; } // optional - can be used to specify SecurityAccessLevel
 
-    public bool IsActive { get; set; }
-
     protected override void OnParametersSet()
     {
         base.OnParametersSet();