sb/intel/i82801ex: Remove unused code
Only board using this code was tyan s2735 which was removed in
f76de841f1 "[REMOVAL] tyan/s2735"
Change-Id: I03a101adc1eedfa9669e0b44c54c2c6fa08bd5f2
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/19507
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>