staging: comedi: ni_daq_dio24: remove the '#ifdef incomplete' code

All the '#ifdef incomplete' code deals with interrupt support in
this driver. For now just remove all this #if'defed out code.

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>