[WFLY-3667] Remove EJB default permissions concept

As per https://issues.jboss.org/browse/WFLY-3667 I think introducing these permissions was an error and is never desirable in a security manager situation.  This PR removes the permissions and makes the corresponding enable/disable attribute a no-operation.
This is "deprecated since" notion, so usually it would be 3.0.0. But since we're breaking it straight away, it doesn't much matter. :)