add removal of obsolete plugins

Application/Migration/ConfigurationMigration.cs

@@ -85,5 +85,20 @@ namespace IW4MAdmin.Application.Migration
                 config.ManualLogPath = null;
             }
         }
+
+        public static void RemoveObsoletePlugins20210322()
+        {
+            var files = new[] {"StatsWeb.dll", "StatsWeb.Views.dll"};
+
+            foreach (var file in files)
+            {
+                var path = Path.Join(Utilities.OperatingDirectory, "Plugins", file);
+                
+                if (File.Exists(path))
+                {
+                    File.Delete(path);
+                }
+            }
+        }
     }
 }