remove function, which uses getters and setters

plugins/pilot/util.js

@@ -586,33 +586,6 @@ exports.clone = function(object, deep) {
     return object;
 };
 
-
-/**
- * Helper method for extending one object with another
- * Copies all properties from source to target. Returns the extended target
- * object.
- * Taken from John Resig, http://ejohn.org/blog/javascript-getters-and-setters/.
- */
-exports.mixin = function(a, b) {
-    for (var i in b) {
-        var g = b.__lookupGetter__(i);
-        var s = b.__lookupSetter__(i);
-
-        if (g || s) {
-            if (g) {
-                a.__defineGetter__(i, g);
-            }
-            if (s) {
-                a.__defineSetter__(i, s);
-            }
-        } else {
-            a[i] = b[i];
-        }
-    }
-
-    return a;
-};
-
 /**
  * Basically taken from Sproutcore.
  * Replaces the count items from idx with objects.