aopen/dxplplusu: Switch to C_ENVIRONMENT_BOOTBLOCK

This board is the only user of these ancient chipsets,
so we'll do all in one go.

Also wipe out some extra headers.

Change-Id: I22c172d577e6072562d8fcfa58145ec62473823e
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/30688
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

0 files changed, 0 insertions, 0 deletions