removed unused variable from source
removed unused variable from source

finnhaedicke/metaSMT,agra-uni-bremen/metaSMT,finnhaedicke/metaSMT,nbruns1/metaSMT,finnhaedicke/metaSMT,agra-uni-bremen/metaSMT,agra-uni-bremen/metaSMT,hoangmle/metaSMT,hoangmle/metaSMT,nbruns1/metaSMT,hoangmle/metaSMT,nbruns1/metaSMT