You can remove any type of resource from the Resources app as described below.
To remove a resource
- Open the Resources app and go the category where the relevant resource is located.
 - Click next to the resource you want to remove.
 - From the menu, select Remove resource.
 - 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.