Remove unused imports

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1577077 13f79535-47bb-0310-9956-ffa450edef68
Set eol prop.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1577080 13f79535-47bb-0310-9956-ffa450edef68
Reduce calls to getManager().
(That is not a simple getter, but it performs some locking).

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1577087 13f79535-47bb-0310-9956-ffa450edef68