Update the simulated OLT/ONU adapters as per the childdetected
API.

Change-Id: Ib1d7b95ca1e1ed1cf9cb337217156f1ec7094734
diff --git a/adapters/simulated_onu/adaptercore/device_handler.go b/adapters/simulated_onu/adaptercore/device_handler.go
index 51a0667..4404643 100644
--- a/adapters/simulated_onu/adaptercore/device_handler.go
+++ b/adapters/simulated_onu/adaptercore/device_handler.go
@@ -96,7 +96,7 @@
 	cloned.Root = false
 	cloned.Vendor = "simulators"
 	cloned.Model = "go-simulators"
-	cloned.SerialNumber = com.GetRandomSerialNumber()
+	//cloned.SerialNumber = com.GetRandomSerialNumber()
 	cloned.MacAddress = strings.ToUpper(com.GetRandomMacAddress())
 
 	// Synchronous call to update device - this method is run in its own go routine