To delete an ABL trigger, select the trigger name in the DB Structure view and choose Drop Trigger from the context menu. A dialog prompts you to confirm the deletion.
Note: To delete multiple triggers simultaneously, select the triggers in the DB Structure view. Right-click, and then choose Drop Triggers from the context menu.

For more information, see OpenEdge Development: Programming Interfaces. You can find OpenEdge manuals in the Product Documentation section of the Progress Software Developer's Network Web site.