def remove_timeout(self, timeout):
        # Removing from a heap is complicated, so just leave the defunct
        # timeout object in the queue (see discussion in
        # http://docs.python.org/library/heapq.html).
        # If this turns out to be a problem, we could add a garbage
        # collection pass whenever there are too many dead timeouts.
        timeout.callback = None
Cancels a pending timeout.
dataset/ETHPy150Open felipecruz/zmqpy/zmqpy/eventloop/ioloop.py/IOLoop.remove_timeout