Remove redundant null-check
Remove redundant null-check

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