Remove debug logging in LayerTreeHostTestBreakSwapPromise

Remove debug logging in LayerTreeHostTestBreakSwapPromise

The flaky test recovers by itself somehow. Remove the debug logging.

BUG=393995
TBR=danakj@chromium.org

Committed: https://crrev.com/b45c86fd648dbb7f5f8211ff792ea23029bca34f
Cr-Commit-Position: refs/heads/master@{#295525}

[Yufeng Shen (Slow to review), 2014-09-16 19:06:23]

miletus@chromium.org changed reviewers:
+ danakj@chromium.org

[Yufeng Shen (Slow to review), 2014-09-18 15:33:54]

The CQ bit was checked by miletus@chromium.org

[commit-bot: I haz the power, 2014-09-18 15:34:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/574813002/1

[danakj, 2014-09-18 15:35:01]

LGTM

[commit-bot: I haz the power, 2014-09-18 17:36:17]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-09-18 17:36:18]

Exceeded time limit waiting for builds to trigger.

[Yufeng Shen (Slow to review), 2014-09-18 17:39:46]

The CQ bit was checked by miletus@chromium.org

[commit-bot: I haz the power, 2014-09-18 17:41:39]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/574813002/1

[commit-bot: I haz the power, 2014-09-18 19:35:18]

Committed patchset #1 (id:1) as 098929d6ae34a8b879b7e7b12e559e851a69e84b

[commit-bot: I haz the power, 2014-09-18 19:35:48]

Patchset 1 (id:??) landed as
https://crrev.com/b45c86fd648dbb7f5f8211ff792ea23029bca34f
Cr-Commit-Position: refs/heads/master@{#295525}