Remove DL0 specific code from dsinstance ipaserver/install
Promote is now hard set to True in create_replica for later use in
_get_replication_manager.
See: https://pagure.io/freeipa/issue/7689
Signed-off-by: Thomas Woerner <twoerner@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>