Fix EJB view after deprecation of attribute 'cluster' in '/subsystem=ejb3/service=remote'

The attribute cluster of resource /subsystem=ejb3/service=remote has been deprecated since version 10.0.0. 

This leads to an error in the EJB subsystem because this attribute is part of a form in the EJB MBUI view. Forms in MBUI views don't support deprecated attributes. 

There are two solutions to fix that:

1. Remove attribute cluster from the EJB MBUI view
2. Allow deprecated attributes in forms of MBUI views

My preference is the first option.