Consider removing the embedded broker from the standard WF Preview configs

Originally WildFly Preview did not include an embedded broker in its standard configs, as we don't regard embedding a broker as the best option for modern architectures, particularly on the cloud. As part of the transition work for moving standard WF to EE 10, I restored it, as it was easier to do the transition work without that difference between WFP and std WF.

This task is to consider reverting that restoration.