Simplify the code of DeltaManager#startInternal().
Reduce unnecessary nesting for acquisition of cluster instance.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1536968 13f79535-47bb-0310-9956-ffa450edef68
Remove unnecessary attributes of stateTransferCreateSendTime and receiverQueue from cluster manager template.
These attributes should not be defined as a template.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1536974 13f79535-47bb-0310-9956-ffa450edef68