UCDetector
 - use final
 - reduce visibility
 - remove unused code

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1448099 13f79535-47bb-0310-9956-ffa450edef68
UCDetector
 - use final
 - reduce visibility
 - remove unused code

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1448103 13f79535-47bb-0310-9956-ffa450edef68