1 files changed, 1 insertions, 11 deletions
diff --git a/js/dist/collapse.js b/js/dist/collapse.js
index 29f47f9002..af9406fc6a 100644
--- a/js/dist/collapse.js
+++ b/js/dist/collapse.js
@@ -54,17 +54,7 @@
   function _inheritsLoose(subClass, superClass) {
     subClass.prototype = Object.create(superClass.prototype);
     subClass.prototype.constructor = subClass;
-
-    _setPrototypeOf(subClass, superClass);
-  }
-
-  function _setPrototypeOf(o, p) {
-    _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
-      o.__proto__ = p;
-      return o;
-    };
-
-    return _setPrototypeOf(o, p);
+    subClass.__proto__ = superClass;
   }
 
   /**