chore: remove useless namespace.

src/Shared/HandyControl_Shared/Controls/Other/Divider.cs

@@ -1,5 +1,4 @@
-using System.ComponentModel;
-using System.Windows;
+using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Markup;
 using System.Windows.Media;

src/Shared/HandyControl_Shared/Tools/Generator/ComparerGenerator.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using HandyControl.Collections;
 using HandyControl.Data;
 
 namespace HandyControl.Tools;