You can remove any type of resources from the Resources app as described below.

To remove a resource

1. Open the Resources app and go the category where the relevant resource is located.
2. Click  next to the resource you want to remove.
3. From the menu, select Remove resource.
4. When you get the message asking if you want to remove the resource, click Remove.

When you get a confirmation message, it means the resource is successfully removed.