GitLab

AccessibilityManager is always created, so the mash conditional is not
needed. The conditional dates back to early on in mash when the
AccessibilityManager was not created.

BUG=none
TEST=none

Change-Id: I3a8945aa8659703d8a2edec03a1a46ec3513505a
Reviewed-on: https://chromium-review.googlesource.com/1157214Reviewed-by: James Cook <jamescook@chromium.org>
Commit-Queue: Scott Violet <sky@chromium.org>
Cr-Commit-Position: refs/heads/master@{#579595}