Remove some dead code from Layout

Layout#usesToolbarLayer is never used and can therefore be removed.

Bug: 882508
Change-Id: Id255a67c696e47080e00f58e74500643f3ed04c8
Reviewed-on: https://chromium-review.googlesource.com/c/1265120
Commit-Queue: Matthew Jones <mdjones@chromium.org>
Reviewed-by: David Trainor <dtrainor@chromium.org>
Cr-Commit-Position: refs/heads/master@{#597369}
1 file changed