To unsubscribe from a calendar, perform the following steps:
Right-click on any Sun ONE
folder,
then choose Manage Subscriptions from the popup
menu to open the SunOne Calendar Subscriptions window.
Select the calendar from which you want to unsubscribe.
Click on the Unsubscribe button.
Click OK to save your changes and close the SunOne Calendar Subscriptions dialog.
Evolution deletes the selected calendar from the specified Sun ONE
folder.