Node.networkConfig now only needs to populate the lists of assigned addresses and multicast subscriptions and then it's finished

Signed-off-by: Grant Limberg <glimberg@gmail.com>

java/src/com/zerotierone/sdk/VirtualNetworkConfig.java

@@ -47,7 +47,6 @@ public class VirtualNetworkConfig {
     private boolean portError;
     private boolean enabled;
     private long netconfRevision;
-    private int multicastSubscriptionCount;
     private ArrayList<MulticastGroup> multicastSubscriptions;
     private ArrayList<InetAddress> assignedAddresses;