If, however, an app is no longer needed but has been deployed to a site, you will need to remove it from the App Catalog page. To do this, follow these steps:

1. Navigate to the App Catalog | Site contents page.
2. Select the app, select the ellipsis (...) in the popup menu, and then select Deployment.
3. Select the site that the app will be removed from and click Remove:
   

4. Click OK.
5. Click Trust It.

The app has now been removed from the site.