only in patch2:
unchanged:
--- a/core/.eslintrc.json
+++ b/core/.eslintrc.json
@@ -16,7 +16,6 @@
     "domready": true,
     "jQuery": true,
     "_": true,
-    "matchMedia": true,
     "Backbone": true,
     "Modernizr": true,
     "Popper": true,