Correct.  No required.

Per the Comptroller's website:

A combined group must include all taxable entities in the combined group report even if any member, on a separate entity basis, has annualized total revenue at or below the no tax due threshold. If a combined group’s annualized total revenue is at or below the no tax due threshold, the combined group is no longer required to file a No Tax Due Report, an Affiliate Schedule, or a Common Owner Information Report for that report year.