Added support for replicating device removed topology events
diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/device/impl/GossipDeviceStoreMessageSubjects.java b/core/store/dist/src/main/java/org/onlab/onos/store/device/impl/GossipDeviceStoreMessageSubjects.java
index 4b59e3a..5272182 100644
--- a/core/store/dist/src/main/java/org/onlab/onos/store/device/impl/GossipDeviceStoreMessageSubjects.java
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/device/impl/GossipDeviceStoreMessageSubjects.java
@@ -11,6 +11,7 @@
 
     public static final MessageSubject DEVICE_UPDATE = new MessageSubject("peer-device-update");
     public static final MessageSubject DEVICE_OFFLINE = new MessageSubject("peer-device-offline");
+    public static final MessageSubject DEVICE_REMOVED = new MessageSubject("peer-device-removed");
     public static final MessageSubject PORT_UPDATE = new MessageSubject("peer-port-update");
     public static final MessageSubject PORT_STATUS_UPDATE = new MessageSubject("peer-port-status-update");
 }