isdn: Drop big endian cpp checks from telespci and hfc_pci drivers

With arm:allmodconfig, building the Teles PCI driver fails with

telespci.c:294:2: error: #error "not running on big endian machines now"

Similar, building the driver for HFC PCI-Bus cards fails with

hfc_pci.c:1647:2: error: #error "not running on big endian machines now"

Remove the big endian cpp check from both drivers to fix the build errors.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>