diff --git a/lib/utils.js b/lib/utils.js
index d88c9bf7..4a1bdec0 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -299,18 +299,4 @@ Dictionary.prototype = {
             ret.push(f(this._values[i], i.substr(1)));
         return ret;
     }
-};
-
-function CopyObject(obj){
-    var newObj = {};
-    for(var i in obj) if(obj.hasOwnProperty(i)) newObj[i] = obj[i];
-    newObj.__proto__ = obj.__proto__;
-    return newObj
-}
-
-function ReplaceObject(obj, newObj){
-    for(var i in obj) if(obj.hasOwnProperty(i)) delete obj[i];
-    for(var i in newObj) if(newObj.hasOwnProperty(i)) obj[i] = newObj[i];
-    obj.__proto__ = newObj.__proto__;
-    return obj;
-}
\ No newline at end of file
+};
\ No newline at end of file