Delete dhcp agent table in admin network panel

there is no dhcp agent in neutron with astara, it will throw a dhcp agent
not found error in network detail page.

Change-Id: I36b7ac721de4af94920377244e23252a5db4baf3

astara_horizon/astara_openstack_dashboard/overrides.py

@@ -0,0 +1,24 @@
+# Copyright (c) 2015 Akanda, Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+from openstack_dashboard.dashboards.admin.networks import views
+from openstack_dashboard.dashboards.admin.networks.ports \
+    import tables as ports_tables
+from openstack_dashboard.dashboards.admin.networks.subnets \
+    import tables as subnets_tables
+
+
+# override network tables to delete dhcp agent table
+views.DetailView.table_classes = (subnets_tables.SubnetsTable,
+                                  ports_tables.PortsTable)