Revert debugging code in HdingWindowAnimationObserver

Revert debugging code in HdingWindowAnimationObserver (https://codereview.chromium.org/150573007)
The debugging code unfortunately did not produce any results.

BUG=None
TEST=None

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=251832

[pkotwicz, 2014-02-18 05:06:39]

Scott, can you please take a look? I could not find any crashes with this stack
trace on the crash server

[sky, 2014-02-18 17:38:06]

LGTM - did you still see the crash you were trying to track down?

[pkotwicz, 2014-02-18 17:49:49]

Nope, the crash has mysteriously disappeared

[pkotwicz, 2014-02-18 17:49:53]

The CQ bit was checked by pkotwicz@chromium.org

[commit-bot: I haz the power, 2014-02-18 17:50:26]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pkotwicz@chromium.org/169283010/1

[sky, 2014-02-18 17:50:46]

You sure you don't want to leave it in for a little while longer until
you see one of the crashes?

On Tue, Feb 18, 2014 at 9:49 AM,  <pkotwicz@chromium.org> wrote:
> Nope, the crash has mysteriously disappeared
>
> https://codereview.chromium.org/169283010/

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[commit-bot: I haz the power, 2014-02-18 18:24:06]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pkotwicz@chromium.org/169283010/1

[commit-bot: I haz the power, 2014-02-18 18:32:23]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pkotwicz@chromium.org/169283010/1

[commit-bot: I haz the power, 2014-02-18 20:51:22]

Change committed as 251832