functional/rpcpb: remove "InsecureSkipVerify"

Signed-off-by: Gyuho Lee <gyuhox@gmail.com>

functional/rpcpb/member.go

@@ -108,7 +108,7 @@ func (m *Member) CreateEtcdClientConfig(opts ...grpc.DialOption) (cfg *clientv3.
 
 			// TODO: remove this with generated certs
 			// only need it for auto TLS
-			InsecureSkipVerify: true,
+			// InsecureSkipVerify: true,
 		}
 		var tlsConfig *tls.Config
 		tlsConfig, err = tlsInfo.ClientConfig()