Dead code removal.

BUG=None.
TEST=None.

Change-Id: I3d3c21a4cabea2e5c38418f15d82be3b60c06ec2
Reviewed-on: https://chromium-review.googlesource.com/220690
Reviewed-by: Fang Deng <fdeng@chromium.org>
Tested-by: Ilja Friedel <ihf@chromium.org>
Commit-Queue: Ilja Friedel <ihf@chromium.org>
44 files changed