[OTS] Remove unused constants

patch by thakis@chromium.org

R=yusukes@chromium.org

Review URL: https://codereview.chromium.org/24502005

git-svn-id: http://ots.googlecode.com/svn/trunk@103 a4e77c2c-9104-11de-800e-5b313e0d2bf3
1 file changed