The messaging engine is removed from the cluster.
Remember: When you remove a messaging engine, WebSphere® Application Server does not delete
the data store tables automatically. If you want to recreate the same
messaging engine, you must first delete the previous set of tables.
But if you create a messaging engine with existing tables, they must
be empty, so that the messaging engine can function correctly. Refer
to the documentation for your chosen relational database management
system (RDBMS) for information about how to delete tables. However,
if you have created a data store with default settings, you do not
need to delete previous tables.