Remove hints

Change-Id: I537619fefad6ffb6b46c5dc618f0fdcc15884d6e
diff --git a/tests/unit/mgmt/management-tool.cpp b/tests/unit/mgmt/management-tool.cpp
index b61ac86..5af6c33 100644
--- a/tests/unit/mgmt/management-tool.cpp
+++ b/tests/unit/mgmt/management-tool.cpp
@@ -188,7 +188,7 @@
     Rrset rrset = findRrSet(zone, label, type);
     Data data(rrset.getData());
     Response resp;
-    resp.fromData("", zone.getName(), data);
+    resp.fromData(zone.getName(), data);
     return resp;
   }