remove() called on home of a sfsb in tx must fail

EJB2.1 spec
7.6.4 Restrictions for Transactions
"If a session bean instance is participating in a transaction, it is an error for a client to invoke the
remove method on the session object's home or component interface object. The container
must detect such an attempt and throw the javax.ejb.RemoveException to the client.
The container should not mark the client's transaction for rollback, thus allowing the client to
recover."