scsi: qla2xxx: Don't call qlt_async_event twice

scsi: qla2xxx: Don't call qlt_async_event twice

BugLink: https://bugs.launchpad.net/bugs/1860125
[ Upstream commit 2c2f4bed9b6299e6430a65a29b5d27b8763fdf25 ]

MBA_PORT_UPDATE generates duplicate log lines in target mode because
qlt_async_event is called twice. Drop the calls within the case as the
function will be called right after the switch statement.

Cc: Quinn Tran <qutran@marvell.com>
Link: https://lore.kernel.org/r/20191125165702.1013-8-r.bolshakov@yadro.com
Acked-by: Himanshu Madhani <hmadhani@marvel.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Hannes Reinecke <hare@suse.de>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>