revert prefetch and maxPageSize to defaults to transaction tests, issue was negative inflight count due to duplicate acks, prefetch and max page size was a just a workaround that is not now needed AMQ-2149|https://issues.apache.org/activemq/browse/AMQ-2149
activemq/trunk/activemq-core/src/test/java/org/apache/activemq/bugs/AMQ2149Test.java