USB: spcp8x5.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: Alan Stern <stern@rowland.harvard.edu>
CC: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/serial/spcp8x5.c

@@ -454,8 +454,6 @@ static int spcp8x5_open(struct tty_struct *tty, struct usb_serial_port *port)
 	u8 status = 0x30;
 	/* status 0x30 means DSR and CTS = 1 other CDC RI and delta = 0 */
 
-	dbg("%s -  port %d", __func__, port->number);
-
 	usb_clear_halt(serial->dev, port->write_urb->pipe);
 	usb_clear_halt(serial->dev, port->read_urb->pipe);