Fix comments

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1459505 13f79535-47bb-0310-9956-ffa450edef68
Remove unnecessary method.

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1459506 13f79535-47bb-0310-9956-ffa450edef68