Drop the “MediaQueryListListener” feature (#7210)
Drop the “MediaQueryListListener” feature (#7210)

This change drops the “MediaQueryListListener” feature. It’s not the
name of an actual API but instead apparently was just a kind of
shorthand for something that’s no longer part of any spec anyway. See
https://wiki.developer.mozilla.org/docs/Web/API/MediaQueryListListener
mdn/browser-compat-data,chrisdavidmills/browser-compat-data,mdn/browser-compat-data,chrisdavidmills/browser-compat-data