staging: comedi: comedi_parport: remove the printk noise

Remove the function trace message in parport_intr_cancel() and the
"bogus irq..." message is parport_interrupt(). They are just added
noise.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>