[VOL-4371]  Voltha protos cleanup

Change-Id: I9ee6ef8c48e7287c3b546c59d5190a8311f1b3ac
diff --git a/rw_core/core/device/logical_agent_group.go b/rw_core/core/device/logical_agent_group.go
index 9a47d81..cbf296b 100644
--- a/rw_core/core/device/logical_agent_group.go
+++ b/rw_core/core/device/logical_agent_group.go
@@ -231,7 +231,7 @@
 	}
 
 	// Update the devices
-	respChnls := agent.updateFlowsAndGroupsOfDevice(ctx, deviceRules, &voltha.FlowMetadata{})
+	respChnls := agent.updateFlowsAndGroupsOfDevice(ctx, deviceRules, &ofp.FlowMetadata{})
 
 	// Wait for completion
 	go func() {