remove unnecessary placeholder message
remove unnecessary placeholder message

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