staging: comedi: dyna_pci10xx: remove unused bars from the private data

All of the pci device base address registers are saved in the private
data but only bar2 and bar3 are used by the driver. Remove the others.

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>