removeDevice on non-master node to silently ignore the request
instead of throwing IllegalState exception

Change-Id: Ida778ec112e80507fb05921e49297350d74dc519
diff --git a/core/store/dist/src/test/java/org/onlab/onos/store/device/impl/GossipDeviceStoreTest.java b/core/store/dist/src/test/java/org/onlab/onos/store/device/impl/GossipDeviceStoreTest.java
index 55fa1f4..975a7f8 100644
--- a/core/store/dist/src/test/java/org/onlab/onos/store/device/impl/GossipDeviceStoreTest.java
+++ b/core/store/dist/src/test/java/org/onlab/onos/store/device/impl/GossipDeviceStoreTest.java
@@ -32,6 +32,7 @@
 import org.onlab.onos.cluster.ControllerNode.State;
 import org.onlab.onos.cluster.DefaultControllerNode;
 import org.onlab.onos.cluster.NodeId;
+import org.onlab.onos.mastership.MastershipServiceAdapter;
 import org.onlab.onos.mastership.MastershipTerm;
 import org.onlab.onos.net.Annotations;
 import org.onlab.onos.net.DefaultAnnotations;
@@ -143,6 +144,8 @@
         ClusterService clusterService = new TestClusterService();
 
         testGossipDeviceStore = new TestGossipDeviceStore(deviceClockService, clusterService, clusterCommunicator);
+        testGossipDeviceStore.mastershipService = new TestMastershipService();
+
         gossipDeviceStore = testGossipDeviceStore;
         gossipDeviceStore.activate();
         deviceStore = gossipDeviceStore;
@@ -797,6 +800,13 @@
         assertTrue("Remove event fired", removeLatch.await(1, TimeUnit.SECONDS));
     }
 
+    private final class TestMastershipService extends MastershipServiceAdapter {
+        @Override
+        public NodeId getMasterFor(DeviceId deviceId) {
+            return NID1;
+        }
+    }
+
     private static final class TestGossipDeviceStore extends GossipDeviceStore {
 
         public TestGossipDeviceStore(