Chrome OS: Remove old accessibility_menu.

Bug: 926638
Change-Id: Idbd460128f8a3693d7fdb899890883a6a5364ef9
Reviewed-on: https://chromium-review.googlesource.com/c/1461756
Reviewed-by: Dominic Mazzoni <dmazzoni@chromium.org>
Reviewed-by: Jacob Dufault <jdufault@chromium.org>
Commit-Queue: Alexander Alekseev <alemate@chromium.org>
Cr-Commit-Position: refs/heads/master@{#632574}
6 files changed