add a new endpoint param IsFavorite and use it for reports

MediaBrowser.Model/Querying/ItemFilter.cs

@@ -45,10 +45,6 @@ namespace MediaBrowser.Model.Querying
         /// <summary>
         /// The is favorite or likes
         /// </summary>
-        IsFavoriteOrLikes = 10,
-        /// <summary>
-        /// The item is not a favorite
-        /// </summary>
-        IsNotFavorite = 11
+        IsFavoriteOrLikes = 10
     }
 }