To remove an integration, there are two steps.
1- First off, you need to make sure that you don’t have any dashboard currently linked to the integration you want to remove from your account.
2- If this isn’t yet the case, either delete the dashboard in question or delete the source from the dashboard using the little “sources” icon in your main admin page.
2- Next, go to the Integrations page and hit “delete” next to the integration you want to remove.
Done, the integration isn’t there anymore!