zfcp: remove access control tables interface (port leftovers)

zfcp: remove access control tables interface (port leftovers)

This patch removes some leftovers for commit
69110dcdd754732cbed91d3cc1980b465ab04b0f
"[SCSI] zfcp: remove access control tables interface".

The "access denied" case for ports is gone, as well.
The corresponding flag was cleared, but never set.
So clean it up.

Sysfs flag is kept, though, for backward-compatibility.
Now it returns always 0.

Signed-off-by: Martin Peschke <mpeschke@linux.vnet.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>