After you have created a Title, you may wish to delete it. Perhaps the Title was created in error, or created before it was necessary. Whatever the reason, a Title can be deleted so long as it doesn't have any Releases yet. (If it does have one or more Releases, it can't be deleted, but can be marked inactive.)
Go to the Titles screen and click on the name of the Title you want to delete.
Select the "Tools" tab.
Click the "Delete Title" button.
Note that once a Title has been deleted, it can't be restored.