[RLS] Remove references to RootLayerScrollingEnabled in various files

Bug:823365

Change-Id: I188e8521d0981c3da23f978caaffdc0009190691
Reviewed-on: https://chromium-review.googlesource.com/1070887
Commit-Queue: Chris Harrelson <chrishtr@chromium.org>
Reviewed-by: Philip Rogers <pdr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#561316}
9 files changed