removed support function

lib/timeline/Range.js

@@ -554,17 +554,6 @@ Range.prototype._onPinch = function (event) {
   }
 };
 
-function printObject(obj) {
-  var str = ""
-  for (var idx in obj) {
-    if (obj.hasOwnProperty(idx)) {
-      str += idx + ":" + obj[idx] + " <br>";
-    }
-
-  }
-  return str;
-}
-
 /**
  * Helper function to calculate the center date for zooming
  * @param {{x: Number, y: Number}} pointer