To delete the Outlook add-in, follow the steps below:
In the admin centre, click Settings, then select the Integrated apps page.
Select Access Legal, then click the Configuration tab.
In the Configuration pane, go to Advanced Settings and then click Add-ins.
From the list, select Access Legal again, then select Remove Add-In.
Remove the Add-in button on the bottom right corner.
Validate your selections, and select Remove.
For more information on Add-in management, visit the Microsoft knowledge base.
