Modifies the Rights Identifiers attribute of an X25 Relay
    PVC instance to remove the specified rights identifier
    or identifers.

    remove  [node  node-id] x25 relay -
         pvc pvc-name -
         rights identifiers {simplename[,simplename...]}

    Rights Identifiers

    Default: No rights identifiers    Value: Set of simple names

    Rights identifiers possessed by this entity. These rights are
    used to access the local PVC and relayed PVC if it resides on the
    local system.