MDC Select limitation: None of the ripple/state styles work for CSS-only selects

[kfranqueiro]

CSS-only MDC Select puts ripple/states styles on a native select. Native selects do not get ::before or ::after pseudo-elements, which means most of those styles don't have any effect.

Solving this would require either rethinking the DOM structure, or seeing if we can get away with attaching the ripple to the root element instead (as mentioned in #1725).

[lynnmercier]

Closing as obsolete because CSS only version is removed with #2116