Removes the given tasks from the queue.

def QueueDeleteTasks(self, queue, tasks):
    """Removes the given tasks from the queue."""
    predicates = []
    for task in tasks:
      task_id = getattr(task, "task_id", None) or int(task)
      predicates.append(DataStore.QueueTaskIdToColumn(task_id))
    self.DeleteAttributes(queue, predicates)