The Favorites Administration page allows you to manage your Favorites list from a single interface.
Once opened by the 'Edit' link on any of the Dashboard pages, you can chose and delete reports that no longer need to be on your list.
To remove an item from the "Favorites" list, simply check the box associated with the item you wish to remove and click on the Delete button.
You can also remove reports from the "Favorites" list by clicking on the 'Remove from Favorites' icon on the specific report.
Management Console Navigation Guide - online Help