You can delete an LTB form from the form history. 

Follow the step below:

• Go to Tenant Management> Tenant
• Select the Tenant, and go to tenant details
• Click on the down arrow key in Forms
• Select “VIEW HISTORY”
• Provide a Delete Reason
• Click on the Delete icon button, and the form will be deleted.

Note: You can mark this item as deleted (the system will still keep the record and the file). You will not be able to undo it after marking it as deleted.