Remove unused LOG and CONF

This is to remove unused LOG and CONF to keep code clean.

Change-Id: I5bca3cb114a4074fa2d837233723d1a94d1f6434
diff --git a/ironic_tempest_plugin/tests/scenario/test_baremetal_basic_ops.py b/ironic_tempest_plugin/tests/scenario/test_baremetal_basic_ops.py
index a95b3d4..6312500 100644
--- a/ironic_tempest_plugin/tests/scenario/test_baremetal_basic_ops.py
+++ b/ironic_tempest_plugin/tests/scenario/test_baremetal_basic_ops.py
@@ -15,13 +15,10 @@
 
 from oslo_log import log as logging
 from tempest.common import waiters
-from tempest import config
 from tempest import test
 
 from ironic_tempest_plugin.tests.scenario import baremetal_manager
 
-CONF = config.CONF
-
 LOG = logging.getLogger(__name__)
 
 
diff --git a/ironic_tempest_plugin/tests/scenario/test_baremetal_multitenancy.py b/ironic_tempest_plugin/tests/scenario/test_baremetal_multitenancy.py
index 551c885..3374352 100644
--- a/ironic_tempest_plugin/tests/scenario/test_baremetal_multitenancy.py
+++ b/ironic_tempest_plugin/tests/scenario/test_baremetal_multitenancy.py
@@ -13,8 +13,6 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-from oslo_log import log as logging
-
 from ironic_tempest_plugin.tests.scenario import baremetal_manager
 from tempest import config
 from tempest.lib.common.utils import data_utils
@@ -23,8 +21,6 @@
 
 CONF = config.CONF
 
-LOG = logging.getLogger(__name__)
-
 
 class BaremetalMultitenancy(baremetal_manager.BaremetalScenarioTest,
                             manager.NetworkScenarioTest):