Remove unnecessary @SuppressWarnings

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1508171 13f79535-47bb-0310-9956-ffa450edef68
Remove unused code

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1508172 13f79535-47bb-0310-9956-ffa450edef68