[QPID-5938]: qpid-stat: remove dead code relevant to active-active cluster

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1614577 13f79535-47bb-0310-9956-ffa450edef68
QPID-5940 : [Java Broker] Fix type registry to work when run in tests

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1614581 13f79535-47bb-0310-9956-ffa450edef68