irda: Convert IRDA_DEBUG to pr_debug

Use the normal kernel debugging mechanism which also
enables dynamic_debug at the same time.

Other miscellanea:

o Remove sysctl for irda_debug
o Remove function tracing like uses (use ftrace instead)
o Coalesce formats
o Realign arguments
o Remove unnecessary OOM messages

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/irda/sir_dongle.c b/drivers/net/irda/sir_dongle.c
index cfbabb6..7436f73 100644
--- a/drivers/net/irda/sir_dongle.c
+++ b/drivers/net/irda/sir_dongle.c
@@ -34,8 +34,8 @@
 	struct list_head *entry;
 	struct dongle_driver *drv;
 
-	IRDA_DEBUG(0, "%s : registering dongle \"%s\" (%d).\n",
-		   __func__, new->driver_name, new->type);
+	pr_debug("%s : registering dongle \"%s\" (%d).\n",
+		 __func__, new->driver_name, new->type);
 
 	mutex_lock(&dongle_list_lock);
 	list_for_each(entry, &dongle_list) {