fix unused variable
fix unused variable

sousoux/luvit,zhaozg/luvit,boundary/luvit,GabrielNicolasAvellaneda/luvit-upstream,boundary/luvit,bsn069/luvit,GabrielNicolasAvellaneda/luvit-upstream,bsn069/luvit,zhaozg/luvit,luvit/luvit,kaustavha/luvit,GabrielNicolasAvellaneda/luvit-upstream,DBarney/luvit,rjeli/luvit,DBarney/luvit,sousoux/luvit,sousoux/luvit,DBarney/luvit,GabrielNicolasAvellaneda/luvit-upstream,boundary/luvit,boundary/luvit,rjeli/luvit,kaustavha/luvit,boundary/luvit,luvit/luvit,rjeli/luvit,boundary/luvit,DBarney/luvit,sousoux/luvit,sousoux/luvit,kaustavha/luvit,sousoux/luvit,rjeli/luvit,bsn069/luvit