Clean usings

Author: Sébastien Geiser

RegexDialog/RegExToolDialog.xaml.cs

@@ -1,18 +1,15 @@
-using CSScriptLibrary;
+using CSScriptLibrary;
 using ICSharpCode.AvalonEdit.Highlighting;
 using ICSharpCode.AvalonEdit.Highlighting.Xshd;
 using Microsoft.Win32;
 using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
 using Ookii.Dialogs.Wpf;
 using System;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.Diagnostics;
 using System.IO;
 using System.Linq;
-using System.Net;
-using System.Net.Http;
 using System.Reflection;
 using System.Text;
 using System.Text.RegularExpressions;