GossipStores: iterate using forEach

Change-Id: I1c230932ab1c9112692708a4d5c869eac3c50db8

@@ -1032,12 +1032,9 @@ public class GossipDeviceStore
         Map<PortFragmentId, Timestamp> adPorts = new HashMap<>(numDevices * portsPerDevice);
         Map<DeviceId, Timestamp> adOffline = new HashMap<>(numDevices);
 
-        for (Entry<DeviceId, Map<ProviderId, DeviceDescriptions>>
-            provs : deviceDescs.entrySet()) {
+        deviceDescs.forEach((deviceId, devDescs) -> {
 
             // for each Device...
-            final DeviceId deviceId = provs.getKey();
-            final Map<ProviderId, DeviceDescriptions> devDescs = provs.getValue();
             synchronized (devDescs) {
 
                 // send device offline timestamp
@@ -1065,7 +1062,7 @@ public class GossipDeviceStore
                     }
                 }
             }
-        }
+        });
 
         return new DeviceAntiEntropyAdvertisement(self, adDevices, adPorts, adOffline);
     }

@@ -674,17 +674,13 @@ public class GossipLinkStore
         Map<LinkFragmentId, Timestamp> linkTimestamps = new HashMap<>(linkDescs.size());
         Map<LinkKey, Timestamp> linkTombstones = new HashMap<>(removedLinks.size());
 
-        for (Entry<LinkKey, Map<ProviderId, Timestamped<LinkDescription>>>
-            provs : linkDescs.entrySet()) {
-
-            final LinkKey linkKey = provs.getKey();
-            final Map<ProviderId, Timestamped<LinkDescription>> linkDesc = provs.getValue();
+        linkDescs.forEach((linkKey, linkDesc) -> {
             synchronized (linkDesc) {
                 for (Map.Entry<ProviderId, Timestamped<LinkDescription>> e : linkDesc.entrySet()) {
                     linkTimestamps.put(new LinkFragmentId(linkKey, e.getKey()), e.getValue().timestamp());
                 }
             }
-        }
+        });
 
         linkTombstones.putAll(removedLinks);