Removes debugging code

Crash data seems to indicate my last patch (r227940) was the source of
the crash.

BUG=275760
TEST=none
R=sadrul@chromium.org

Review URL: https://codereview.chromium.org/26534004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228999 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 228999