USB: symbolserial.c: remove dbg() tracing calls

dbg() was used a lot a long time ago to trace code flow.  Now that we have
ftrace, this isn't needed at all, so remove these calls.

CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Johan Hovold <jhovold@gmail.com>
CC: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
CC: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/serial/symbolserial.c b/drivers/usb/serial/symbolserial.c
index 1a5be13..04e8812 100644
--- a/drivers/usb/serial/symbolserial.c
+++ b/drivers/usb/serial/symbolserial.c
@@ -54,8 +54,6 @@
 	int result;
 	int data_length;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	switch (status) {
 	case 0:
 		/* success */
@@ -125,8 +123,6 @@
 	unsigned long flags;
 	int result = 0;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	spin_lock_irqsave(&priv->lock, flags);
 	priv->throttled = false;
 	priv->actually_throttled = false;
@@ -150,8 +146,6 @@
 {
 	struct symbol_private *priv = usb_get_serial_data(port->serial);
 
-	dbg("%s - port %d", __func__, port->number);
-
 	/* shutdown our urbs */
 	usb_kill_urb(priv->int_urb);
 }
@@ -161,7 +155,6 @@
 	struct usb_serial_port *port = tty->driver_data;
 	struct symbol_private *priv = usb_get_serial_data(port->serial);
 
-	dbg("%s - port %d", __func__, port->number);
 	spin_lock_irq(&priv->lock);
 	priv->throttled = true;
 	spin_unlock_irq(&priv->lock);
@@ -174,8 +167,6 @@
 	int result;
 	bool was_throttled;
 
-	dbg("%s - port %d", __func__, port->number);
-
 	spin_lock_irq(&priv->lock);
 	priv->throttled = false;
 	was_throttled = priv->actually_throttled;
@@ -266,8 +257,6 @@
 {
 	struct symbol_private *priv = usb_get_serial_data(serial);
 
-	dbg("%s", __func__);
-
 	usb_kill_urb(priv->int_urb);
 	usb_free_urb(priv->int_urb);
 }
@@ -276,8 +265,6 @@
 {
 	struct symbol_private *priv = usb_get_serial_data(serial);
 
-	dbg("%s", __func__);
-
 	kfree(priv->int_buffer);
 	kfree(priv);
 }