nfc: pn533: drop unneeded debug prints

ftrace is a preferred and standard way to debug entering and exiting
functions so drop useless debug prints.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/nfc/pn533/i2c.c

@@ -128,7 +128,6 @@ static int pn533_i2c_read(struct pn533_i2c_phy *phy, struct sk_buff **skb)
 static irqreturn_t pn533_i2c_irq_thread_fn(int irq, void *data)
 {
 	struct pn533_i2c_phy *phy = data;
-	struct i2c_client *client;
 	struct sk_buff *skb = NULL;
 	int r;
 
@@ -137,9 +136,6 @@ static irqreturn_t pn533_i2c_irq_thread_fn(int irq, void *data)
 		return IRQ_NONE;
 	}
 
-	client = phy->i2c_dev;
-	dev_dbg(&client->dev, "IRQ\n");
-
 	if (phy->hard_fault != 0)
 		return IRQ_HANDLED;
 

drivers/nfc/pn533/pn533.c

@@ -1235,8 +1235,6 @@ static void pn533_listen_mode_timer(struct timer_list *t)
 {
 	struct pn533 *dev = from_timer(dev, t, listen_timer);
 
-	dev_dbg(dev->dev, "Listen mode timeout\n");
-
 	dev->cancel_listen = 1;
 
 	pn533_poll_next_mod(dev);