storage_service: Kill one FIXME for is_replacing
storage_service: Kill one FIXME for is_replacing

justintung/scylla,aruanruan/scylla,gwicke/scylla,linearregression/scylla,asias/scylla,scylladb/scylla,kjniemi/scylla,capturePointer/scylla,kangkot/scylla,guiquanz/scylla,raphaelsc/scylla,bowlofstew/scylla,stamhe/scylla,tempbottle/scylla,linearregression/scylla,rentongzhang/scylla,raphaelsc/scylla,phonkee/scylla,kangkot/scylla,scylladb/scylla,senseb/scylla,tempbottle/scylla,phonkee/scylla,capturePointer/scylla,scylladb/scylla,glommer/scylla,guiquanz/scylla,guiquanz/scylla,rluta/scylla,victorbriz/scylla,tempbottle/scylla,justintung/scylla,linearregression/scylla,shaunstanislaus/scylla,victorbriz/scylla,bowlofstew/scylla,eklitzke/scylla,kjniemi/scylla,asias/scylla,respu/scylla,shaunstanislaus/scylla,duarten/scylla,asias/scylla,kangkot/scylla,respu/scylla,glommer/scylla,wildinto/scylla,senseb/scylla,aruanruan/scylla,aruanruan/scylla,capturePointer/scylla,justintung/scylla,victorbriz/scylla,senseb/scylla,avikivity/scylla,rluta/scylla,rluta/scylla,wildinto/scylla,shaunstanislaus/scylla,acbellini/scylla,duarten/scylla,gwicke/scylla,dwdm/scylla,phonkee/scylla,dwdm/scylla,avikivity/scylla,stamhe/scylla,glommer/scylla,stamhe/scylla,scylladb/scylla,rentongzhang/scylla,bowlofstew/scylla,acbellini/scylla,eklitzke/scylla,rentongzhang/scylla,dwdm/scylla,acbellini/scylla,gwicke/scylla,raphaelsc/scylla,kjniemi/scylla,respu/scylla,eklitzke/scylla,duarten/scylla,wildinto/scylla,avikivity/scylla