Perform the following procedure to delete event lists.
To delete a list or a folder:
Click [Customize] in the System Lists region. The Customize Lists page is displayed.
In the Show dropdown list, select Event Lists. All available event lists and folders are displayed. Click expand all menu items
to expand all of the menu lists, or click collapse all menu items
to collapse the menu lists.
Select the list or folder to be deleted.
Click [Delete]. A dialog box is displayed. Click [OK] to continue with the deletion, or click [Cancel] to cancel the operation. If the selected folder has lists in its content, an error message is displayed.