Forward Device remove to MASTER

Change-Id: I5bf0fc76ffd04d5a1165d24e82eedd7993ec95be
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 89577a8..4c9e48c 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
@@ -27,6 +27,7 @@
 
     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_REMOVE_REQ = new MessageSubject("peer-device-remove-request");
     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");