Merge pull request #2 from GotenXiao/patch-1

Remove reference to dnsutil.Dedup

handler.go

@@ -8,7 +8,6 @@ import (
  "github.com/miekg/dns"
  "golang.org/x/net/context"
  "github.com/coredns/coredns/request"
- "github.com/coredns/coredns/plugin/pkg/dnsutil"
 )
 
 // ServeDNS implements the plugin.Handler interface.
@@ -78,7 +77,6 @@ func (redis *Redis) ServeDNS(ctx context.Context, w dns.ResponseWriter, r *dns.M
  m.Answer = append(m.Answer, answers...)
  m.Extra = append(m.Extra, extras...)
 
- m = dnsutil.Dedup(m)
  state.SizeAndDo(m)
  m, _ = state.Scrub(m)
  w.WriteMsg(m)
@@ -99,4 +97,4 @@ func (redis *Redis) errorResponse(state request.Request, zone string, rcode int,
  state.W.WriteMsg(m)
  // Return success as the rcode to signal we have written to the client.
  return dns.RcodeSuccess, err
-}
+}