diff --git a/django/forms/widgets.py b/django/forms/widgets.py
index 1ff0d5a2714..7e3c8f3dcaa 100644
--- a/django/forms/widgets.py
+++ b/django/forms/widgets.py
@@ -44,10 +44,6 @@ class Media(object):
         for name in MEDIA_TYPES:
             getattr(self, 'add_' + name)(media_attrs.get(name, None))
 
-        # Any leftover attributes must be invalid.
-        # if media_attrs != {}:
-        #     raise TypeError("'class Media' has invalid attribute(s): %s" % ','.join(media_attrs.keys()))
-
     def __str__(self):
         return self.render()