4xx: Remove binary cpld bitstream from CMS700 board

This patch removes the cpld binary bitstream that is
used by esd's cpld command on CMS700 boards.

Because u-boot with an external cpld bitstream may not
take more space in flash than before the u-boot binary is
shrinked a little bit. Some unused featues have been
removed therefore.

Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu>
Signed-off-by: Stefan Roese <sr@denx.de>