Remove unused code
Remove unused code

sashless/rangy,zimme/rangy,emil-mi/rangy,etodd/rangy,GerHobbelt/Rangy,brymacto/rangy,wotzisname/rangy,wotzisname/rangy,lpsBetty/rangy,shuizhongyueming/rangy,timdown/rangy,sashless/rangy,timdown/rangy,izhan/rangy,izhan/rangy,emil-mi/rangy,brymacto/rangy,etodd/rangy,zimme/rangy,lpsBetty/rangy,shuizhongyueming/rangy,GerHobbelt/Rangy,yangdm2015/vue-rangy,yangdm2015/vue-rangy