[telemetry] Disable IPPET power monitor

Disable IPPET power monitor added in https://codereview.chromium.org/394923003/. The win8 perf bot (http://build.chromium.org/p/chromium.perf/builders/Win%208%20Perf%20%281%29)
became pretty flaky right after this power monitoring patch landed. Some of the failures are clearly
IPPET-related, but others are silent timeouts which also appeared around the same time.

Sample failures:

- AssertionError: Called StartMonitoringPower() twice.
http://build.chromium.org/p/chromium.perf/builders/Win%208%20Perf%20%281%29/builds/2561/steps/page_cycler.dhtml/logs/stdio

- IppetError: Timed out waiting for IPPET to close.
http://build.chromium.org/p/chromium.perf/builders/Win%208%20Perf%20%281%29/builds/2540/steps/page_cycler.dhtml/logs/stdio

- TimeoutException: Timed out while waiting 5s for IppetServerIsUp.
http://build.chromium.org/p/chromium.perf/builders/Win%208%20Perf%20%281%29/builds/2551/steps/page_cycler.dhtml/logs/stdio

- Generic timeout
http://build.chromium.org/p/chromium.perf/builders/Win%208%20Perf%20%281%29/builds/2558/steps/page_cycler.intl_ar_fa_he/logs/stdio

Original issue's description:
> [telemetry] Add IPPET power monitor.
>
> This power monitor lets our automated testers track power usage on Windows on Intel Sandy Bridge or later.
>
>
> BUG=336558, 153139
>
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=286541

R=rmcilroy@chromium.org, tonyg@chromium.org

Review URL: https://codereview.chromium.org/443973002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@287779 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed