delete_entry
Description:
public bool delete_entry (AuthorizationDomain? domain, Entry entry, Cancellable? cancellable = null) throws Error
Deletes entry from the server.
For more information about the concept of deleting entries, see the online documentation for the GData protocol.
If cancellable is not null, then the operation can be cancelled by triggering the cancellable object
      from another thread. If the operation was cancelled before or during network activity, the error 
      CANCELLED will be returned. Cancellation has no effect after network
      activity has finished, however, and the deletion will return successfully (or return an error sent by the server) if it is first cancelled after
      network activity has finished. See the overview of cancellation for more details.
If there is an error deleting the entry, a PROTOCOL_ERROR
       error will be returned. Currently, subclasses cannot cannot override this or provide more specific errors.
Parameters:
| this | 
           a Service  | 
      
| domain | 
           the AuthorizationDomain the deletion falls under, or   | 
      
| entry | 
           the Entry to delete  | 
      
| cancellable | 
           optional Cancellable object, or   | 
      
Returns:
| 
           
  |