Remove unused config.CONF

This is to remove unused config.CONF to keep code clean.

Change-Id: Id434902e469700505fc55e09ba51207d9ce9ea71
diff --git a/neutron/tests/tempest/api/test_allowed_address_pair.py b/neutron/tests/tempest/api/test_allowed_address_pair.py
index 88818b2..e4c499c 100644
--- a/neutron/tests/tempest/api/test_allowed_address_pair.py
+++ b/neutron/tests/tempest/api/test_allowed_address_pair.py
@@ -19,8 +19,6 @@
 from neutron.tests.tempest.api import base
 from neutron.tests.tempest import config
 
-CONF = config.CONF
-
 
 class AllowedAddressPairTestJSON(base.BaseNetworkTest):
 
diff --git a/neutron/tests/tempest/api/test_extensions.py b/neutron/tests/tempest/api/test_extensions.py
index 1defb33..28029d8 100644
--- a/neutron/tests/tempest/api/test_extensions.py
+++ b/neutron/tests/tempest/api/test_extensions.py
@@ -13,9 +13,6 @@
 from tempest import test
 
 from neutron.tests.tempest.api import base
-from neutron.tests.tempest import config
-
-CONF = config.CONF
 
 
 class ExtensionsTest(base.BaseNetworkTest):
diff --git a/neutron/tests/tempest/api/test_network_ip_availability.py b/neutron/tests/tempest/api/test_network_ip_availability.py
index 6a81128..324c3fd 100644
--- a/neutron/tests/tempest/api/test_network_ip_availability.py
+++ b/neutron/tests/tempest/api/test_network_ip_availability.py
@@ -24,8 +24,6 @@
 
 from neutron_lib import constants as lib_constants
 
-CONF = config.CONF
-
 # 3 IP addresses are taken from every total for IPv4 these are reserved
 DEFAULT_IP4_RESERVED = 3
 # 2 IP addresses are taken from every total for IPv6 these are reserved
diff --git a/neutron/tests/tempest/api/test_networks.py b/neutron/tests/tempest/api/test_networks.py
index d3967ea..2c2991a 100644
--- a/neutron/tests/tempest/api/test_networks.py
+++ b/neutron/tests/tempest/api/test_networks.py
@@ -16,9 +16,6 @@
 from tempest import test
 
 from neutron.tests.tempest.api import base
-from neutron.tests.tempest import config
-
-CONF = config.CONF
 
 
 class NetworksTestJSON(base.BaseNetworkTest):
diff --git a/neutron/tests/tempest/api/test_security_groups_negative.py b/neutron/tests/tempest/api/test_security_groups_negative.py
index 68b5fd0..43bc88c 100644
--- a/neutron/tests/tempest/api/test_security_groups_negative.py
+++ b/neutron/tests/tempest/api/test_security_groups_negative.py
@@ -17,9 +17,6 @@
 from tempest import test
 
 from neutron.tests.tempest.api import base_security_groups as base
-from neutron.tests.tempest import config
-
-CONF = config.CONF
 
 
 class NegativeSecGroupTest(base.BaseSecGroupTest):