aoe: eliminate isbusy message

This message doesn't help users because the circumstance isn't problematic.
Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/block/aoe/aoedev.c

@@ -20,11 +20,8 @@ aoedev_isbusy(struct aoedev *d)
 	f = d->frames;
 	e = f + d->nframes;
 	do {
-		if (f->tag != FREETAG) {
-			printk(KERN_DEBUG "aoe: %ld.%ld isbusy\n",
-				d->aoemajor, d->aoeminor);
+		if (f->tag != FREETAG)
 			return 1;
-		}
 	} while (++f < e);
 
 	return 0;