Fix TLS gRPC connection from peer to ordering service

The dial options was initialized with "no TLS" and it
conflicts when TLS is enabled.
Removing this from the starting slice should fix the problem.

Change-Id: Ic6cfa185737e565b45d6be4418f95cfce0e548d0
Signed-off-by: Yacov Manevich <[email protected]>

Author: yacovm

core/deliverservice/deliveryclient.go

@@ -109,7 +109,7 @@ func NewDeliverService(gossip blocksprovider.GossipServiceAdapter, endpoints []s
 	for _, idx := range indices {
 		logger.Infof("Creating delivery service to get blocks from the ordering service, %s", endpoints[idx])
 
-		dialOpts := []grpc.DialOption{grpc.WithInsecure(), grpc.WithTimeout(3 * time.Second), grpc.WithBlock()}
+		dialOpts := []grpc.DialOption{grpc.WithTimeout(3 * time.Second), grpc.WithBlock()}
 
 		if comm.TLSEnabled() {
 			dialOpts = append(dialOpts, grpc.WithTransportCredentials(comm.InitTLSForPeer()))