Revert "Added ExeFile (wpf) mocks with"

This reverts commit b3fa49fd1d.

ExeFile/App.xaml.cs

@@ -1,17 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Configuration;
-using System.Data;
-using System.Linq;
-using System.Threading.Tasks;
-using System.Windows;
-
-namespace ExeFile
-{
-    /// <summary>
-    /// Interaction logic for App.xaml
-    /// </summary>
-    public partial class App : Application
-    {
-    }
-}