Merge pull request #504 from iamqizhao/master

remove some commented code left from previous PRs
diff --git a/server.go b/server.go
index a7ff16c..be4d4e6 100644
--- a/server.go
+++ b/server.go
@@ -378,8 +378,6 @@
 			if pf == compressionMade {
 				var err error
 				req, err = dc.Do(bytes.NewReader(req))
-				//req, err = ioutil.ReadAll(dc)
-				//defer dc.Close()
 				if err != nil {
 					if err := t.WriteStatus(stream, codes.Internal, err.Error()); err != nil {
 						grpclog.Printf("grpc: Server.processUnaryRPC failed to write status %v", err)