Deleting a Subscription
Subscriptions can be deleted by using the DeleteSubscription method of the SubscriptionManager object. This method requires that the workspace name and the numeric Subscription ID be passed to it as parameters. For information about obtaining the Subscription ID and other subscription properties, see Viewing Subscription Properties. The DeleteSubscription method removes all information that is stored for the specified subscription from both the workspace system folder and the property store used by the Search service.