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

Change-Id: I0a1aea4bdb5d305c50273e6ff749fe71bd2a295a
diff --git a/drivers/default/src/main/java/org/onosproject/driver/pipeline/Ofdpa2GroupHandler.java b/drivers/default/src/main/java/org/onosproject/driver/pipeline/Ofdpa2GroupHandler.java
index 80d8332..03f2996 100644
--- a/drivers/default/src/main/java/org/onosproject/driver/pipeline/Ofdpa2GroupHandler.java
+++ b/drivers/default/src/main/java/org/onosproject/driver/pipeline/Ofdpa2GroupHandler.java
@@ -1099,7 +1099,7 @@
                     .collect(Collectors.toSet());
             keys.addAll(otherkeys);
 
-            keys.stream().forEach(key ->
+            keys.forEach(key ->
                     processPendingAddGroupsOrNextObjs(key, false));
         }
     }