Code cleanup.

Author: yfakariya

test/MsgPack.UnitTest.Silverlight.WindowsPhone/App.xaml.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Diagnostics;
-using System.Resources;
 using System.Threading;
 using System.Windows;
 using System.Windows.Markup;

test/MsgPack.UnitTest.Silverlight.WindowsPhone/MainPage.xaml.cs

@@ -1,17 +1,9 @@
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Net;
-using System.Windows;
-using System.Windows.Controls;
-using System.Windows.Navigation;
-using Microsoft.Phone.Controls;
-using Microsoft.Phone.Shell;
 using System.Threading;
+using Microsoft.Phone.Controls;
 using Microsoft.VisualStudio.TestPlatform.Core;
-using vstest_executionengine_platformbridge;
 using Microsoft.VisualStudio.TestPlatform.TestExecutor;
-using System.Reflection;
+using vstest_executionengine_platformbridge;
 
 namespace MsgPack
 {