s390/qeth: don't set card state in qeth_qdio_clear_card()

Any change to the card state should only be driven by
qeth_l?_set_online() and qeth_l?_stop_card().

qeth_qdio_clear_card() currently also gets called from
(a) qeth_core_shutdown(), where we haven't walked through the whole
    teardown sequence. So changing the state to DOWN is not accurate.
(b) qeth_core_hardsetup_card(), which is only called while the card is
    still in DOWN state. No change in behaviour here.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/s390/net/qeth_core_main.c

@@ -1513,7 +1513,6 @@ int qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
 	rc = qeth_clear_halt_card(card, use_halt);
 	if (rc)
 		QETH_CARD_TEXT_(card, 3, "2err%d", rc);
-	card->state = CARD_STATE_DOWN;
 	return rc;
 }
 EXPORT_SYMBOL_GPL(qeth_qdio_clear_card);