Quicksettings: Bump dual switch icon(s).

* Replace with less intrusive ones one more time, these looks beautiful.
  Drawables by Arz Bathia.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
Remove dead code.

This hasn't been used since at least 2011, and we're no longer
shipping the data supporting it either.

Change-Id: Ibe42057650b49794c65d6f0d54ed7a492f3b594b