Use Collection#forEach() instead of Stream#forEach() for simplicity

Change-Id: I0a1aea4bdb5d305c50273e6ff749fe71bd2a295a
diff --git a/drivers/ciena/src/main/java/org/onosproject/drivers/ciena/CienaWaveserverDeviceDescription.java b/drivers/ciena/src/main/java/org/onosproject/drivers/ciena/CienaWaveserverDeviceDescription.java
index 69bbe9c..5dc526a 100644
--- a/drivers/ciena/src/main/java/org/onosproject/drivers/ciena/CienaWaveserverDeviceDescription.java
+++ b/drivers/ciena/src/main/java/org/onosproject/drivers/ciena/CienaWaveserverDeviceDescription.java
@@ -103,7 +103,7 @@
                 loadXml(controller.get(deviceId, GENERAL_PORT_REQUEST, XML));
         List<HierarchicalConfiguration> portsConfig =
                 parseWaveServerCienaPorts(config);
-        portsConfig.stream().forEach(sub -> {
+        portsConfig.forEach(sub -> {
             String portId = sub.getString(PORT_ID);
             String name = sub.getString(NAME);
             if (LINESIDE_PORT_ID.contains(portId)) {