tasks_delete_sync
Description:
public bool tasks_delete_sync (string tasklist_id, string task_id, Cancellable? cancellable = null) throws Error
  
  Deletes a task task_id from a task list tasklist_id.
Parameters:
| this | 
           an GDataSession  | 
      
| tasklist_id | 
           id of a task list  | 
      
| task_id | 
           id of a task  | 
      
| cancellable | 
           optional Cancellable object, or   | 
      
Returns:
| 
           whether succeeded  |