soc/intel/braswell: Drop gfx_read_resources()

Drop the last remnant of vanished CONFIG_MARK_GRAPHICS_MEM_WRCOMB.

Could not build test google/cyan and intel/strago due to lack of UEFI
headers, OMG.

Change-Id: I0b9eac5c040d24bab2b85e9b63042b6aaa9879d9
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: http://review.coreboot.org/12338
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
1 file changed