Remove redundant check, make isSelected's behaviour match its contract
Remove redundant check, make isSelected's behaviour match its contract

csmalin/vimium,elegantwww/vimium,VPashkov/vimium,Aleroniponi/vimium,PickRelated/vimium,borgified/vimium,VPashkov/vimium,gdh1995/vimium,cyrixhero/vimium,PrestanceDesign/vimium,elderbas/vimium,willsALMANJ/vimium,bkudria/vimium,cyrixhero/vimium,csmalin/vimium,poacher2k/vimium,poacher2k/vimium,elderbas/vimium,philc/vimium,VPashkov/vimium,Lw-Cui/vimium,Robinson10240/vimium,tuchangwei/vimium,bkudria/vimium,dimatter/vimium,gdh1995/vimium,smblott-github/vimium,zhangmin510/vimium,zhangmin510/vimium,wildeyes/vimium,elegantwww/vimium,PrestanceDesign/vimium,dimatter/vimium,hhsue/vimium,PickRelated/vimium,gdh1995/vimium,PickRelated/vimium,poacher2k/vimium,Lw-Cui/vimium,Aleroniponi/vimium,willsALMANJ/vimium,elderbas/vimium,cyrixhero/vimium,mrmr1993/vimium,decaffeinate-examples/vimium,Robinson10240/vimium,justalittlenoob/vimium,decaffeinate-examples/vimium,douglas-larocca/vimium,philc/vimium,douglas-larocca/vimium,douglas-larocca/vimium,decaffeinate-examples/vimium,philc/vimium,borgified/vimium,Robinson10240/vimium,justalittlenoob/vimium,tuchangwei/vimium,mrmr1993/vimium,hhsue/vimium,borgified/vimium,elegantwww/vimium,smblott-github/vimium,bkudria/vimium,zhangmin510/vimium,wildeyes/vimium,smblott-github/vimium,justalittlenoob/vimium,hhsue/vimium,csmalin/vimium,PrestanceDesign/vimium,mrmr1993/vimium,Lw-Cui/vimium,wildeyes/vimium,dimatter/vimium,Aleroniponi/vimium,tuchangwei/vimium,willsALMANJ/vimium