Clear extra query

Change-Id: Ia048f7bd994134ab42e0b1de9303bf1e7c792515
diff --git a/neutron_policy_server/wsgi.py b/neutron_policy_server/wsgi.py
index 00349d3..5fbc642 100644
--- a/neutron_policy_server/wsgi.py
+++ b/neutron_policy_server/wsgi.py
@@ -212,7 +212,6 @@
                 )
             )
 
-    pairs = query.all()
     pairs = [
         aap_obj.AllowedAddressPair._load_object(context, db_obj)
         for db_obj in query.all()