Clear up setUp in advanced tests

This is follow-up to Iac179b592e579916fc36bef79b1a007528a07f36

Related-Issue: PRODX-11810
Change-Id: I3329f9c59fbc8ac754fa45e5931f21dcf24a5b8a
diff --git a/neutron_tempest_plugin/bgpvpn/scenario/test_bgpvpn_advanced.py b/neutron_tempest_plugin/bgpvpn/scenario/test_bgpvpn_advanced.py
index 3cb03ff..d4fe6d3 100644
--- a/neutron_tempest_plugin/bgpvpn/scenario/test_bgpvpn_advanced.py
+++ b/neutron_tempest_plugin/bgpvpn/scenario/test_bgpvpn_advanced.py
@@ -33,11 +33,6 @@
 class TestBGPVPNAdvanced(base.BaseBgpvpnTest, manager.NetworkScenarioTest):
     def setUp(self):
         super(TestBGPVPNAdvanced, self).setUp()
-        self.keypair = {}
-        self.server = []
-        self.network = {}
-        self.subnet = {}
-        self.server_fip = {}
         self.security_group = self._create_security_group(
             tenant_id=self.bgpvpn_client.tenant_id
         )