Remove dead code from safe_browsing_util.h/cc.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/630012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@39398 0039d316-1c4b-4281-b951-d872f2087c98
5 files changed