QPID-5715: [Java Broker] Refactor VirtualHostStoreUpgraderAndRecoverer/BrokerStoreUpgrader to avoid duplicated code

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1589112 13f79535-47bb-0310-9956-ffa450edef68
NO-JIRA: [Java Broker] Remove now dead recovery/dependency resolution classes

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1589113 13f79535-47bb-0310-9956-ffa450edef68