Revert of [DeviceService] Add service tests for VibrationManager. (patchset #7 id:410001 of https://codereview.chromium.org/2774783003/ )

Reason for revert:
Appears to have broken service_unittests on Nexus 5X.

Original issue's description:
> [DeviceService] Add service tests for VibrationManager.
>
> VibrationManagerImpl.java is in //device/vibration while the
> VibrationManagerImplTest.java is still in //content,
> to be able to hide all //device/vibration impl inside Device Service,
> we must eliminate this concrete dependency on //device/vibration from
> content layer.
>
> As VibrationManagerImplTest.java is an integration test based on
> content shell test infra, we can't move it outside of //content.
> So we consider to use other tests to replace it, while the renderer-side
> testing has already been covered by layout tests created at
> https://codereview.chromium.org/2731953003/, so we create this CL to
> cover the VibrationManager interface impl testing:
>  - creates an infra for Device Service service tests.
>  - adds a new service test for VibrationManager interface.
>
> Then after this CL we'll be able to hide all vibration impl inside
> Device Service with a follow-up CL.
>
> BUG=689379
> TEST=service_unittests
>
> Review-Url: https://codereview.chromium.org/2774783003
> Cr-Commit-Position: refs/heads/master@{#463612}
> Committed: https://chromium.googlesource.com/chromium/src/+/9c17bee62f1e16224fabb7c83bbeaab719015761

TBR=rockot@chromium.org,avi@chromium.org,blundell@chromium.org,jam@chromium.org,timvolodine@chromium.org,leon.han@intel.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=689379

Review-Url: https://codereview.chromium.org/2815623003
Cr-Commit-Position: refs/heads/master@{#463629}
14 files changed