Remove duplicate URL route

cms/urls.py

@@ -94,9 +94,6 @@ urlpatterns = ('',  # nopep8
     url(r'^not_found$', 'contentstore.views.not_found', name='not_found'),
     url(r'^server_error$', 'contentstore.views.server_error', name='server_error'),
 
-    url(r'^(?P<org>[^/]+)/(?P<course>[^/]+)/assets/(?P<name>[^/]+)$',
-        'contentstore.views.asset_index', name='asset_index'),
-
     # temporary landing page for edge
     url(r'^edge$', 'contentstore.views.edge', name='edge'),
     # noop to squelch ajax errors