优化代码

Ink Canvas/Helpers/DeviceIdentifier.cs

@@ -6,7 +6,6 @@ using System.Linq;
 using System.Reflection;
 using System.Security.Cryptography;
 using System.Text;
-using System.Threading;
 
 namespace Ink_Canvas.Helpers
 {

Ink Canvas/Helpers/InkSmoothingConfig.cs

@@ -1,5 +1,4 @@
 using System;
-using System.Configuration;
 
 namespace Ink_Canvas.Helpers
 {

Ink Canvas/MainWindow_cs/MW_ElementsControls.cs

@@ -6,11 +6,9 @@ using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Media;
 using System.Windows.Media.Imaging;
-using System.Windows.Threading;
 using Ink_Canvas.Helpers;
 using System.Windows.Input;
 using System.Linq;
-using System.Collections.Generic;
 using System.Windows.Ink;
 
 namespace Ink_Canvas

Ink Canvas/MainWindow_cs/MW_SelectionGestures.cs

@@ -6,8 +6,6 @@ using System.Windows.Controls;
 using System.Windows.Ink;
 using System.Windows.Input;
 using System.Windows.Media;
-using System.Windows.Shapes;
-using System.Windows.Threading;
 using Point = System.Windows.Point;
 using System.Linq;