diff --git a/tempest/api/compute/servers/test_create_server.py b/tempest/api/compute/servers/test_create_server.py
index c05045e..07423ff 100644
--- a/tempest/api/compute/servers/test_create_server.py
+++ b/tempest/api/compute/servers/test_create_server.py
@@ -204,10 +204,6 @@
     @test.idempotent_id('1678d144-ed74-43f8-8e57-ab10dbf9b3c2')
     @testtools.skipUnless(CONF.service_available.neutron,
                           'Neutron service must be available.')
-    # The below skipUnless should be removed once Kilo-eol happens.
-    @testtools.skipUnless(CONF.compute_feature_enabled.
-                          allow_duplicate_networks,
-                          'Duplicate networks must be allowed')
     def test_verify_duplicate_network_nics(self):
         # Verify that server creation does not fail when more than one nic
         # is created on the same network.
diff --git a/tempest/config.py b/tempest/config.py
index 6360c3e..583e703 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -402,14 +402,6 @@
                      'encrypted volume to a running server instance? This may '
                      'depend on the combination of compute_driver in nova and '
                      'the volume_driver(s) in cinder.'),
-    # TODO(mriedem): Remove allow_duplicate_networks once kilo-eol happens
-    # since the option was removed from nova in Liberty and is the default
-    # behavior starting in Liberty.
-    cfg.BoolOpt('allow_duplicate_networks',
-                default=False,
-                help='Does the test environment support creating instances '
-                     'with multiple ports on the same network? This is only '
-                     'valid when using Neutron.'),
     cfg.BoolOpt('config_drive',
                 default=True,
                 help='Enable special configuration drive with metadata.'),