It depends on the filing date of the two design applications. If the application date is the same, the applicant's voluntary withdrawal of one mid-term application will not affect the authorization of the other. Of course, the premise is that the retained application does not have any other substantive or formal defects. If both items have been authorized and the patentee proposes to waive one of the patent rights, the legal status of the other right will still be valid even if no one claims that the patent right is invalid.