remove error checking
remove error checking


Former-commit-id: 6aaa7eee2559c31dac902a9ea9773105c822c6a8
Former-commit-id: cbb93f2b83403ebb41949e840eb2fbdc6b51921a
dssg/wikienergy,dssg/wikienergy,dssg/wikienergy,dssg/wikienergy,dssg/wikienergy