staging: comedi: addi_apci_3xxx: boards do not have an eeprom

All of the boards supported by this driver have a PCI 9054 chip
without an attached eeprom.

Remove the unused support code that reads the eeprom.

Also, remove the unnecessary 'i_PCIEeprom' and 'pc_EepromChip' data
from the boardinfo.

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