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This reverts commit 703de90c.

Reason for revert: lint errors (http://crbug.com/852189)

Original change's description:
> Check if ARCore is installed or needs update.
> 
> When requesting a session and after the camera permission is confirmed
> to have been granted, check if ARCore is installed and if the version
> used in Chromium is compatible with it. If ARCore is not installed
> or an update is required, a prompt will be shown.
> 
> Bug: 838954
> Change-Id: I35ae39041e7958743bba9cc1c71f5af817bf4240
> Reviewed-on: https://chromium-review.googlesource.com/1074494
> Reviewed-by: Theresa <twellington@chromium.org>
> Reviewed-by: agrieve <agrieve@chromium.org>
> Reviewed-by: Michael Thiessen <mthiesse@chromium.org>
> Reviewed-by: Peter Kasting <pkasting@chromium.org>
> Reviewed-by: Evan Stade <estade@chromium.org>
> Reviewed-by: Klaus Weidner <klausw@chromium.org>
> Commit-Queue: Iker Jamardo <ijamardo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#566589}

TBR=ddorwin@chromium.org,vollick@chromium.org,pkasting@chromium.org,yfriedman@chromium.org,bshe@chromium.org,mthiesse@chromium.org,estade@chromium.org,twellington@chromium.org,agrieve@chromium.org,klausw@chromium.org,billorr@chromium.org,lincolnfrog@chromium.org,ijamardo@chromium.org

Change-Id: I1f88a1de68d4929a842a4c7bf95aa90a7f48bcba
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 838954
Bug: 852189
Reviewed-on: https://chromium-review.googlesource.com/1098335Reviewed-by: Nate Fischer <ntfschr@chromium.org>
Commit-Queue: Nate Fischer <ntfschr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#566635}