clean up runtime keys
clean up runtime keys


Former-commit-id: a97ed36c91df9b02759dd46931e2a8a562c8303b
larryxiao/peloton,larryxiao/peloton-1,larryxiao/peloton-1,omegaga/peloton,larryxiao/peloton,larryxiao/peloton-1,larryxiao/peloton-1,larryxiao/peloton-1,ranxian/peloton,omegaga/peloton,amaliujia/CMUDB-peloton,larryxiao/peloton,ranxian/peloton,ranxian/peloton,amaliujia/CMUDB-peloton,larryxiao/peloton,larryxiao/peloton,larryxiao/peloton-1,omegaga/peloton,amaliujia/CMUDB-peloton,omegaga/peloton,amaliujia/CMUDB-peloton,omegaga/peloton,amaliujia/CMUDB-peloton,omegaga/peloton,ranxian/peloton,larryxiao/peloton-1,ranxian/peloton,larryxiao/peloton,larryxiao/peloton,amaliujia/CMUDB-peloton,ranxian/peloton,omegaga/peloton,amaliujia/CMUDB-peloton