removing invalid property
diff --git a/player/js/utils/PropertyFactory.js b/player/js/utils/PropertyFactory.js
index c6ebb70..a50f1a3 100644
--- a/player/js/utils/PropertyFactory.js
+++ b/player/js/utils/PropertyFactory.js
@@ -701,7 +701,6 @@
         var max = Math.max;
         var min = Math.min;
         var floor = Math.floor;
-        this.mdf = false;
         function updateRange(){
             if(this.dynamicProperties.length){
                 var i, len = this.dynamicProperties.length;