[MD settings] removing a11y_page.css; adding .first and .vertical-list
This CL removes a .css file that is no longer needed. This
brings us closer to unifying the MD settings and helps migrate
away from the deprecated css import.
The .settings-box:first-of-type has been replaced by .first
or .vertical-list. The .vertical-list is used with is="dom-repeat"
and .first is used where the the first element of the list
is explicit (rather than generated at run time).
BUG=
537048
Committed:
https://crrev.com/d81338f3e8bc39f12fa2026550c1af7a93a5a7e0
Cr-Commit-Position: refs/heads/master@{#371673}