Remove minor incompatibility introduced by commit 83cb4dae982bd6e683407ce763b276a812e4c8d5
ISPN-4275 Create server integration tests for HotRod SASL auth
ISPN-4292 Update endpoint subsystem xsd version in server testsuite
ISPN-4131 Lock acquired forever with delayed PrepareCommand

Keep track of the biggest transaction id we removed from the completed
transactions map for each node. If the incoming prepare command has a
smaller id, reject it.
ISPN-3717 Add support for index-less queries using map/reduce

WIP