Keep Joint Gift name but remove its Class Year

Open Online Giving → Campaigns or Online Giving → Forms, select the campaign or form, then go to Giving Experience → Form Builder and select the appropriate Pre-Payment Form or Post-Payment Form.

In the form builder, use Remove on the Class Year child field while retaining the Joint Gift parent/name field. The checkout renders Joint Gift year only while that child field exists. Removing the parent removes its children, so do not remove Joint Gift itself when the goal is only to hide the year selector.