BlackBerry
removing e-mail accounts
You can hide icons on any Blackberry by hitting ALT key and pressing the wheel or in this case roller ball. Then select the hide application. They will still be there but you won't see them. Wow that sounds confusing.
To completely delete it on the device you can go to OPTIONS, ADVANCED OPTIONS, SERVICE BOOK from there you can find the service book for the account you wish to remove and select delete. Do not delete what anything else. There are several service books that support different blackberry operations.