Revert "Added ExeFile (wpf) mocks with"

This reverts commit b3fa49fd1d.

ExeFile/MainWindow.xaml.cs

@@ -1,37 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using System.Windows;
-using System.Windows.Controls;
-using System.Windows.Data;
-using System.Windows.Documents;
-using System.Windows.Input;
-using System.Windows.Media;
-using System.Windows.Media.Imaging;
-using System.Windows.Navigation;
-using System.Windows.Shapes;
-
-namespace ExeFile
-{
-    /// <summary>
-    /// Interaction logic for MainWindow.xaml
-    /// </summary>
-    public partial class MainWindow : Window
-    {
-        public MainWindow()
-        {
-            InitializeComponent();
-            Random random = new Random();
-            this.Title += random.Next().ToString("X");
-            this.grid.Background = new SolidColorBrush(
-                Color.FromArgb((byte)255,
-                    (byte)random.Next(0, 255),
-                    (byte)random.Next(0, 255),
-                    (byte)random.Next(0, 255)
-                )  
-            );
-        }
-    }
-}