USB: qcserial.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: Thomas Tuttle <ttuttle@chromium.org>
CC: Paul Gortmaker <paul.gortmaker@windriver.com>
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Rigbert Hamisch <rigbert@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/serial/qcserial.c

@@ -131,7 +131,6 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
 	__u8 ifnum;
 	bool is_gobi1k = id->driver_info ? true : false;
 
-	dbg("%s", __func__);
 	dbg("Is Gobi 1000 = %d", is_gobi1k);
 
 	nintf = serial->dev->actconfig->desc.bNumInterfaces;
@@ -250,8 +249,6 @@ static void qc_release(struct usb_serial *serial)
 {
 	struct usb_wwan_intf_private *priv = usb_get_serial_data(serial);
 
-	dbg("%s", __func__);
-
 	/* Call usb_wwan release & free the private data allocated in qcprobe */
 	usb_wwan_release(serial);
 	usb_set_serial_data(serial, NULL);