The changes in the code have the side effect that the CDNSKEY and CDS
records in the secure version of the zone are not reusable and thus
are thrashed from the zone. Remove the apex checks for this use case.
We only care about that the zone is not immediately goes bogus, but
a user really should use the built-in "insecure" policy when unsigning
a zone.
(cherry picked from commit
bc703a12e7adf83ac0cef3624fc846eb2c843dbb)
# Various signing policy checks.
check_keys
check_dnssecstatus "$SERVER" "$POLICY" "$ZONE"
-check_apex
-check_subdomain
dnssec_verify
#