plugin/proxy: remove (#2683)

Point proxy to the fake deprecated plugin, next release that will be
removed as well.
Signed-off-by: Miek Gieben <miek@miek.nl>

core/plugin/zplugin.go

@@ -10,6 +10,7 @@ import (
 	_ "github.com/coredns/coredns/plugin/cache"
 	_ "github.com/coredns/coredns/plugin/chaos"
 	_ "github.com/coredns/coredns/plugin/debug"
+	_ "github.com/coredns/coredns/plugin/deprecated"
 	_ "github.com/coredns/coredns/plugin/dnssec"
 	_ "github.com/coredns/coredns/plugin/dnstap"
 	_ "github.com/coredns/coredns/plugin/erratic"
@@ -39,6 +40,5 @@ import (
 	_ "github.com/coredns/coredns/plugin/tls"
 	_ "github.com/coredns/coredns/plugin/trace"
 	_ "github.com/coredns/coredns/plugin/whoami"
-	_ "github.com/coredns/proxy"
 	_ "github.com/mholt/caddy/onevent"
 )

plugin.cfg

@@ -52,7 +52,7 @@ secondary:secondary
 etcd:etcd
 loop:loop
 forward:forward
-proxy:github.com/coredns/proxy
+proxy:deprecated
 erratic:erratic
 whoami:whoami
 on:github.com/mholt/caddy/onevent