Revert of Enable telemetry unittests on Mac 10.9

Revert of Enable telemetry unittests on Mac 10.9 (patchset #1 id:1 of https://codereview.chromium.org/779943004/)

Reason for revert:
Tests fail with a different error.

Original issue's description:
> Enable telemetry unittests on Mac 10.9
>
> The tests were fixed in https://codereview.chromium.org/789853003
>
> BUG=423688
>
> Committed: https://crrev.com/e0fe19f3e05e83e820be8a8e2850853bc0434b21
> Cr-Commit-Position: refs/heads/master@{#307522}

TBR=tonyg@chromium.org,phajdan.jr@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=423688
Committed: https://crrev.com/dbf34f1e5d36e433c9d30df974da8c5f6fa665e5
Cr-Commit-Position: refs/heads/master@{#307553}

[sullivan, 2014-12-09 21:35:17]

Created Revert of Enable telemetry unittests on Mac 10.9

[commit-bot: I haz the power, 2014-12-09 21:36:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/792683002/1

[commit-bot: I haz the power, 2014-12-09 21:37:03]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-12-09 21:37:53]

Patchset 1 (id:??) landed as
https://crrev.com/dbf34f1e5d36e433c9d30df974da8c5f6fa665e5
Cr-Commit-Position: refs/heads/master@{#307553}

[sullivan, 2014-12-10 14:34:34]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/789233002/ by sullivan@chromium.org.

The reason for reverting is: The failing test was disabled in
https://codereview.chromium.org/789043003.