Is double JDBC connection pool to Oracle (no-tx-separate-pools) required in JBoss EAP

Issue

• We are upgrading our environment to Oracle JDBC driver 11.2.0.3 and would like to know if we have to use the <no-tx-separate-pools /> attribute for that version as well. In which situations do we have to use the "<no-tx-separate-pools />" parameter when setting up xa-datasources? We would like to remove the parameter due to the double connection pool it creates. Configuration example:

        <xa-datasource>
             ...
             <no-tx-separate-pools />
             <track-connection-by-tx>true</track-connection-by-tx>
             <isSameRM-override-value>false</isSameRM-override-value>
              <xa-datasource-class>oracle.jdbc.xa.client.OracleXADataSource</xa-datasource-class>
             <metadata>
                  <type-mapping>Oracle9i</type-mapping>
             </metadata>
             ...
        </xa-datasource>