ieee1394: sbp2: remove irritating log message

The queue depth can be read from /sys/bus/scsi/devices/*/queue_depth,
so don't log it.  And the hint about speed improvements is misleading,
at least under current kernels.  If serialization is switched off, read
performance is typically increased by less than 10%.  (I did not test
write performance recently.)  On the other hand, serialize_io=0 is not
yet safe due to some implementation issues that are not trivial to fix.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

drivers/ieee1394/sbp2.c

@@ -2670,8 +2670,6 @@ static int sbp2_module_init(void)
 
 	/* Module load debug option to force one command at a time (serializing I/O) */
 	if (serialize_io) {
-		SBP2_INFO("Driver forced to serialize I/O (serialize_io=1)");
-		SBP2_INFO("Try serialize_io=0 for better performance");
 		scsi_driver_template.can_queue = 1;
 		scsi_driver_template.cmd_per_lun = 1;
 	}