Remove draft-14 comment in package docs.
Remove draft-14 comment in package docs.

DramaFever/golang.org-x-net,cmars/tools,cesanta/goxnet,cmars/tools,raboof/net,DramaFever/golang.org-x-net,gomini/net,raboof/net,gomini/net,cmars/tools,cmars/tools,cesanta/goxnet,albertjin/golang-net,golang/net,albertjin/golang-net