GitLab

This reverts commit 6bc98f91.

Reason for revert:

Findit (https://goo.gl/kROfz5) identified CL at revision 566961 as the
culprit for failures in the build cycles as shown on:
https://findit-for-me.appspot.com/waterfall/culprit?key=ag9zfmZpbmRpdC1mb3ItbWVyRAsSDVdmU3VzcGVjdGVkQ0wiMWNocm9taXVtLzZiYzk4ZjkxODRkYjQzZmFlYWE5N2YwODZhMTFlYmEyNGZkMWMxZjkM

Sample Failed Build: https://ci.chromium.org/buildbot/chromium.memory/Linux%20Chromium%20OS%20ASan%20LSan%20Tests%20%281%29/27907

Sample Failed Step: unit_tests

Original change's description:
> Add server token revocation in AccountManager
> 
> Bug: 820046
> Test: chromeos_unittests --gtest_filter="*AccountManager*"
> Test: unit_tests --gtest_filter="*CrOSOAuthDelegateTest*"
> Change-Id: I017bb9e9f9ed789d77235336be8fa465fd4289b8
> Reviewed-on: https://chromium-review.googlesource.com/1087455
> Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
> Reviewed-by: Lutz Justen <ljusten@chromium.org>
> Reviewed-by: David Roger <droger@chromium.org>
> Commit-Queue: Kush Sinha <sinhak@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#566961}

Change-Id: Ie71a2d159ed50aa3196bf43b488877747b1f88b8
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 820046
Reviewed-on: https://chromium-review.googlesource.com/1100515
Cr-Commit-Position: refs/heads/master@{#567210}