Fix test config

This configuration should not have a "data" folder hence should not
have persistence enabled.

artemis-server/src/test/java/org/apache/activemq/artemis/tests/util/ServiceTestBase.java

@@ -516,6 +516,7 @@ public abstract class ServiceTestBase extends Assert
       ConfigurationImpl configuration = new ConfigurationImpl()
               .setSecurityEnabled(false)
               .setJournalType(getDefaultJournalType())
+              .setPersistenceEnabled(false)
               .setJournalCompactMinFiles(0)
               .setJournalCompactPercentage(0)
               .setClusterPassword(CLUSTER_PASSWORD);