removed useless code from util
removed useless code from util

muut/riotjs,dp-lewis/riot,daemonchen/riotjs,madlordory/riot,madlordory/riot,stonexer/riot,laomu1988/riot,dschnare/riot,duongphuhiep/riot,laomu1988/riot,txchen/riotjs,rasata/riot,davidmarkclements/riot,thepian/riot,stonexer/riot,rthbound/riot,thepian/riot,xtity/riot,muut/riotjs,noodle-learns-programming/riot,qrb/riotjs,chetanism/riot,sylvainpolletvillard/riot,scalabl3/riot,seedtigo/riot,xtity/riot,baysao/riot,daemonchen/riotjs,sylvainpolletvillard/riot,joshcartme/riot,duongphuhiep/riot,AndrewSwerlick/riot,dschnare/riot,rasata/riot,beni55/riot,AndrewSwerlick/riot,marcioj/riot,qrb/riotjs,scalabl3/riot,crisward/riot,txchen/riotjs,rthbound/riot,seedtigo/riot,mike-ward/riot,beni55/riot,davidmarkclements/riot,marcioj/riot,tao-zeng/riot,crisward/riot,baysao/riot,antonheryanto/riot,chetanism/riot,tao-zeng/riot,zawsx/js-lib-webcomponents-react-riot,dp-lewis/riot,joshcartme/riot,noodle-learns-programming/riot,mike-ward/riot,antonheryanto/riot,zawsx/js-lib-webcomponents-react-riot