GitLab

Remove cross origin sensor metrics, due to RAPPOR framework
being turned down.

Cross origin metrics measure the Device Motion/Orientation
API usage across frames. These metrics will be added using
the new UKM framework as a follow-up if necessary.

BUG=1025720

Change-Id: Ie9506fcdc9d0b04088e49af91f7a5a7b093a881b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2062332Reviewed-by: Robert Kaplow <rkaplow@chromium.org>
Commit-Queue: Tim Volodine <timvolodine@chromium.org>
Cr-Commit-Position: refs/heads/master@{#743084}