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

Change-Id: I0a1aea4bdb5d305c50273e6ff749fe71bd2a295a
diff --git a/apps/influxdbmetrics/src/main/java/org/onosproject/influxdbmetrics/DefaultInfluxDbMetricsReporter.java b/apps/influxdbmetrics/src/main/java/org/onosproject/influxdbmetrics/DefaultInfluxDbMetricsReporter.java
index a0dca3b..2945eed 100644
--- a/apps/influxdbmetrics/src/main/java/org/onosproject/influxdbmetrics/DefaultInfluxDbMetricsReporter.java
+++ b/apps/influxdbmetrics/src/main/java/org/onosproject/influxdbmetrics/DefaultInfluxDbMetricsReporter.java
@@ -195,7 +195,7 @@
         MetricRegistry moddedRegistry = new MetricRegistry();
         ControllerNode node = clusterService.getLocalNode();
         String prefix = node.id().id() + ".";
-        metricRegistry.getNames().stream().forEach(name ->
+        metricRegistry.getNames().forEach(name ->
                 moddedRegistry.register(prefix + name, metricRegistry.getMetrics().get(name)));
 
         return moddedRegistry;