VOL-2153 import flow_utils from new location

Change-Id: Iecd3875574ecacd9fd2e96da9637d524724907f0
diff --git a/go.mod b/go.mod
index 557d98e..c302e8b 100644
--- a/go.mod
+++ b/go.mod
@@ -7,8 +7,7 @@
 	github.com/golang/protobuf v1.3.2
 	github.com/onsi/ginkgo v1.8.0 // indirect
 	github.com/onsi/gomega v1.5.0 // indirect
-	github.com/opencord/voltha-go v0.0.0-20191018170815-cb7c88a83125
-	github.com/opencord/voltha-lib-go v0.0.0-20191023185531-80258b36a64b
+	github.com/opencord/voltha-lib-go v0.0.0-20191024175357-456b893dc42c
 	github.com/opencord/voltha-protos v1.0.3
 	go.etcd.io/etcd v0.0.0-20190930204107-236ac2a90522
 	google.golang.org/grpc v1.24.0