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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def remove_nexusnve_binding(vni, switch_ip, device_id):
 """Remove the nexus nve binding."""

    LOG.debug("remove_nexusnve_binding() called")
    session = bc.get_writer_session()
    binding = (session.query(nexus_models_v2.NexusNVEBinding).
               filter_by(vni=vni, switch_ip=switch_ip,
                         device_id=device_id).one())
    if binding:
        session.delete(binding)
        session.flush()
        return binding