ONOS-2926 Remove IP instead of host when the IP mapping is released

Change-Id: Ifea3366ce8a18ea068e615636b3069e769221c0e
diff --git a/providers/host/src/test/java/org/onosproject/provider/host/impl/HostLocationProviderTest.java b/providers/host/src/test/java/org/onosproject/provider/host/impl/HostLocationProviderTest.java
index d010f17..db1eb0f 100644
--- a/providers/host/src/test/java/org/onosproject/provider/host/impl/HostLocationProviderTest.java
+++ b/providers/host/src/test/java/org/onosproject/provider/host/impl/HostLocationProviderTest.java
@@ -259,6 +259,10 @@
             removeCount++;
         }
 
+        @Override
+        public void removeIpFromHost(HostId hostId, IpAddress ipAddress) {
+        }
+
     }
 
     private class TestPacketService extends PacketServiceAdapter {