How to Remove a Product?

You should contact support via the admin console. Or, if your licences are acquired via a vendor (as is with my case) you can also contact the vendor who will make the necessary modifications. 

Hi,

Thank you for posting your query here.

For Cancelling licenses from your existing subscriptions, you need to contact Adobe Support Team. 

You may contact Support Team by clicking on : https://helpx.adobe.com/contact/support.html for chat or https://helpx.adobe.com/contact/phone.html
-click the chat icon at the bottom right of the page to open a chat session
-the chat icon looks like '3 dots inside a circle' at the lower right
-type AGENT into the chat window to connect directly to a person rather than the AI

Hope this helps. 

Thank you.