Eliminate the conn structure for speed
Eliminate the conn structure for speed

conn isn't needed, we can encode the info directly in the
reponsewriter. This saves on allocations and gc for each connection

janstk/dns,josephyzhou/dns,letsencrypt/dns,miekg/dns,flebarbe/dns,ym/go-dns,asergeyev/dns,skynet/dns,michaelharo/dns,curtiszimmerman/dns,rolandshoemaker/dns,tsenart/dns,Psiphon-Inc/dns,ErikDubbelboer/dns,modulexcite/dns,skyportsystems/dns,jdef/dns,FiloSottile/dns,benbearchen/dns,AlexCheong/dns,tonnerre/golang-dns,ezoic/dns,jmhodges/dns,tempbottle/dns,hugozhu/dns,bragr/dns,cloudflare/dns,Git-Host/dns,bboreham/dns