-- Revert t-paliad-271 Wave 2 Tier-3 Slice A — drop duration_unit /
-- alt_duration_unit CHECK constraints. Pre-mig-128 the columns accepted
-- arbitrary text, so dropping the CHECKs restores that shape exactly.
-- No data revert necessary — the constraint addition was purely
-- additive and validated against live data before adding.

ALTER TABLE paliad.deadline_rules
    DROP CONSTRAINT IF EXISTS deadline_rules_duration_unit_check;

ALTER TABLE paliad.deadline_rules
    DROP CONSTRAINT IF EXISTS deadline_rules_alt_duration_unit_check;