Remove unused functions from agent driver

_get_client() not used in agent module.
_time() not used in unit tests.

Change-Id: I8d6127a247675b39449e62445c2f37e5be2f2f12

ironic/drivers/modules/agent.py

@@ -12,8 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import time
-
 from oslo_config import cfg
 from oslo_log import log
 from oslo_utils import excutils
@@ -34,7 +32,6 @@ from ironic.conductor import task_manager
 from ironic.conductor import utils as manager_utils
 from ironic.drivers import base
 from ironic.drivers.modules import agent_base_vendor
-from ironic.drivers.modules import agent_client
 from ironic.drivers.modules import deploy_utils
 
 
@@ -88,16 +85,6 @@ REQUIRED_PROPERTIES = {
 COMMON_PROPERTIES = REQUIRED_PROPERTIES
 
 
-def _time():
-    """Broken out for testing."""
-    return time.time()
-
-
-def _get_client():
-    client = agent_client.AgentClient()
-    return client
-
-
 def build_instance_info_for_deploy(task):
     """Build instance_info necessary for deploying to a node.
 

ironic/drivers/modules/agent_base_vendor.py

@@ -82,11 +82,6 @@ LOG = log.getLogger(__name__)
 POST_CLEAN_STEP_HOOKS = {}
 
 
-def _time():
-    """Broken out for testing."""
-    return time.time()
-
-
 def _get_client():
     client = agent_client.AgentClient()
     return client
@@ -319,7 +314,7 @@ class BaseAgentVendor(base.VendorInterface):
             'Heartbeat from %(node)s, last heartbeat at %(heartbeat)s.',
             {'node': node.uuid,
              'heartbeat': driver_internal_info.get('agent_last_heartbeat')})
-        driver_internal_info['agent_last_heartbeat'] = int(_time())
+        driver_internal_info['agent_last_heartbeat'] = int(time.time())
         try:
             driver_internal_info['agent_url'] = kwargs['agent_url']
         except KeyError: