remove unused method test
remove unused method test

brainagenet/yobi,ihoneymon/yobi,brainagenet/yobi,doortts/fork-yobi,violetag/demo,bloodybear/yona,doortts/forked-for-history,brainagenet/yobi,ChangsungKim/TestRepository01,ihoneymon/yobi,oolso/yobi,bloodybear/yona,naver/yobi,doortts/fork-yobi,ahb0327/yobi,bloodybear/yona,ahb0327/yobi,Limseunghwan/oss,yona-projects/yona,oolso/yobi,bloodybear/yona,doortts/forked-for-history,naver/yobi,violetag/demo,yona-projects/yona,ChangsungKim/TestRepository01,ahb0327/yobi,Limseunghwan/oss,doortts/forked-for-history,yona-projects/yona,Limseunghwan/oss,yona-projects/yona,ihoneymon/yobi,doortts/fork-yobi,oolso/yobi,doortts/fork-yobi,naver/yobi