// DeleteFutureFinalizedTrees deletes all finalized trees with sequence number greater than or equal to fromSequence.
func DeleteFutureFinalizedTrees(db types.DB, fromSequence uint64) error {
	return db.Iterate(dbtypes.AppendSplitter(merkletypes.FinalizedTreePrefix), merkletypes.PrefixedFinalizedTreeKey(fromSequence), func(key, _ []byte) (bool, error) {
		err := db.Delete(key)
		if err != nil {
			return true, err
		}
		return false, nil
	})
}
