Have you added a report to your favorites in error, or would you like to delete its automation? Here's how.
Click on Reports from the left-hand navigation menu.
Go to My Favorites in the upper-right corner.
A sidebar will open showing the names of your bookmarked reports. click the Action icon next to the one you wish to remove.
Click on Delete.
If you would like to add a new report to your favorites, refer to this article.