Reland "Remove VR specific benchmark runner"

This is a reland of 7829a6d05471d9d574e94ee59cb187580fe18919
Original change's description:
> Remove VR specific benchmark runner
> 
> Moves the remainder of setup code out of the VR Telemetry benchmark
> runner and removes the runner. Also removes all the extra files/code
> that were necessary to make presubmit happy while using it.
> 
> Bug: 726906
> Change-Id: Ib5095a9354fc7d33660d63a0ffa73de562b688ab
> Reviewed-on: https://chromium-review.googlesource.com/616320
> Reviewed-by: Ned Nguyen <nednguyen@google.com>
> Commit-Queue: Brian Sheedy <bsheedy@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#494822}

Bug: 726906
Change-Id: Ia92715b34111a4436fd3a8352cf75e82e685912a
Reviewed-on: https://chromium-review.googlesource.com/618947
Reviewed-by: Ned Nguyen <nednguyen@google.com>
Commit-Queue: Brian Sheedy <bsheedy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#495250}