net: remove unused ipv4_l4::send() function
net: remove unused ipv4_l4::send() function

After previous patches this one is no longer used.

joerg84/seastar,justintung/scylla,rentongzhang/scylla,tempbottle/scylla,kangkot/scylla,norcimo5/seastar,bowlofstew/seastar,printedheart/seastar,kjniemi/seastar,flashbuckets/seastar,syuu1228/seastar,xtao/seastar,stamhe/scylla,tempbottle/seastar,phonkee/scylla,hongliangzhao/seastar,victorbriz/scylla,scylladb/scylla,justintung/scylla,gwicke/scylla,raphaelsc/scylla,capturePointer/scylla,sjperkins/seastar,asias/scylla,anzihenry/seastar,shaunstanislaus/scylla,acbellini/scylla,shyamalschandra/seastar,ducthangho/imdb,norcimo5/seastar,leejir/seastar,rentongzhang/scylla,rentongzhang/scylla,ducthangho/imdb,kangkot/scylla,scylladb/scylla,stamhe/seastar,bzero/seastar,chunshengster/seastar,koolhazz/seastar,justintung/scylla,cloudius-systems/seastar,avikivity/scylla,wildinto/seastar,rluta/scylla,guiquanz/scylla,sjperkins/seastar,joerg84/seastar,bowlofstew/scylla,printedheart/seastar,rluta/scylla,shaunstanislaus/scylla,hongliangzhao/seastar,jonathanleang/seastar,raphaelsc/seastar,koolhazz/seastar,raphaelsc/scylla,slivne/seastar,wildinto/seastar,phonkee/scylla,jonathanleang/seastar,raphaelsc/seastar,dwdm/seastar,chunshengster/seastar,mixja/seastar,asias/scylla,scylladb/seastar,avikivity/seastar,bowlofstew/seastar,kjniemi/seastar,kjniemi/scylla,eklitzke/scylla,scylladb/scylla-seastar,victorbriz/scylla,eklitzke/scylla,sjperkins/seastar,dwdm/seastar,slivne/seastar,stamhe/scylla,linearregression/scylla,syuu1228/seastar,scylladb/scylla-seastar,duarten/scylla,koolhazz/seastar,victorbriz/scylla,flashbuckets/seastar,mixja/seastar,respu/scylla,senseb/scylla,cloudius-systems/seastar,bowlofstew/scylla,acbellini/scylla,senseb/scylla,wildinto/seastar,duarten/scylla,scylladb/scylla,dwdm/seastar,avikivity/seastar,leejir/seastar,norcimo5/seastar,bowlofstew/seastar,shyamalschandra/seastar,duarten/scylla,tempbottle/seastar,rluta/scylla,scylladb/scylla-seastar,aruanruan/scylla,glommer/scylla,acbellini/seastar,kangkot/scylla,linearregression/seastar,bowlofstew/scylla,printedheart/seastar,tempbottle/scylla,mixja/seastar,glommer/scylla,asias/scylla,aruanruan/scylla,dreamsxin/seastar,gwicke/scylla,guiquanz/scylla,stamhe/seastar,acbellini/scylla,wildinto/scylla,xtao/seastar,wildinto/scylla,linearregression/seastar,scylladb/seastar,joerg84/seastar,acbellini/seastar,linearregression/scylla,stamhe/scylla,gwicke/scylla,linearregression/seastar,guiquanz/scylla,chunshengster/seastar,xtao/seastar,syuu1228/seastar,ducthangho/imdb,shyamalschandra/seastar,anzihenry/seastar,dreamsxin/seastar,tempbottle/scylla,hongliangzhao/seastar,avikivity/scylla,tempbottle/seastar,flashbuckets/seastar,dreamsxin/seastar,stamhe/seastar,scylladb/seastar,kjniemi/scylla,bzero/seastar,wildinto/scylla,anzihenry/seastar,shaunstanislaus/scylla,linearregression/scylla,leejir/seastar,capturePointer/scylla,dwdm/scylla,raphaelsc/scylla,respu/scylla,acbellini/seastar,eklitzke/scylla,avikivity/scylla,aruanruan/scylla,scylladb/scylla,cloudius-systems/seastar,jonathanleang/seastar,senseb/scylla,glommer/scylla,dwdm/scylla,slivne/seastar,phonkee/scylla,dwdm/scylla,kjniemi/scylla,bzero/seastar,kjniemi/seastar,avikivity/seastar,respu/scylla,capturePointer/scylla,raphaelsc/seastar