[wpr-go] Switch system_health_mobile.json to use go

Bug: 730036
Change-Id: If021f6dc5d267cf250b717cf4d145cb5a4f283f1
Reviewed-on: https://chromium-review.googlesource.com/585301
Reviewed-by: Ned Nguyen <nednguyen@google.com>
Commit-Queue: Helen Li <xunjieli@chromium.org>
Cr-Commit-Position: refs/heads/master@{#489923}
44 files changed