[Trivial]Remove unused variables and methods

This is to remove unused variables and methods to keep code clean.

Change-Id: Ib0b1e6ecb23481103791b065a622b4b89190412e

tempest/api/identity/admin/v3/test_application_credentials.py

@@ -37,7 +37,7 @@ class ApplicationCredentialsV3AdminTest(base.BaseApplicationCredentialsV3Test,
         secret = app_cred['secret']
 
         # Check that the application credential is functional
-        token_id, resp = self.non_admin_token.get_token(
+        _, resp = self.non_admin_token.get_token(
             app_cred_id=app_cred['id'],
             app_cred_secret=secret,
             auth_data=True

tempest/api/identity/v3/test_application_credentials.py

@@ -51,7 +51,7 @@ class ApplicationCredentialsV3Test(base.BaseApplicationCredentialsV3Test):
         self.assertNotIn('secret', app_cred)
 
         # Check that the application credential is functional
-        token_id, resp = self.non_admin_token.get_token(
+        _, resp = self.non_admin_token.get_token(
             app_cred_id=app_cred['id'],
             app_cred_secret=secret,
             auth_data=True

tempest/api/network/test_floating_ips.py

@@ -66,7 +66,7 @@ class FloatingIPTestJSON(base.BaseNetworkTest):
         cls.create_router_interface(cls.router['id'], cls.subnet['id'])
         # Create two ports one each for Creation and Updating of floatingIP
         cls.ports = []
-        for i in range(2):
+        for _ in range(2):
             port = cls.create_port(cls.network)
             cls.ports.append(port)
 

tempest/api/object_storage/test_container_sync.py

@@ -92,7 +92,7 @@ class ContainerSyncTest(base.BaseObjectTest):
             # create object in container
             object_name = data_utils.rand_name(name='TestSyncObject')
             data = object_name[::-1].encode()  # Raw data, we need bytes
-            resp, _ = obj_client[0].create_object(cont[0], object_name, data)
+            obj_client[0].create_object(cont[0], object_name, data)
             self.objects.append(object_name)
 
         # wait until container contents list is not empty

tempest/api/object_storage/test_crossdomain.py

@@ -32,9 +32,6 @@ class CrossdomainTest(base.BaseObjectTest):
 
         cls.xml_end = "</cross-domain-policy>"
 
-    def setUp(self):
-        super(CrossdomainTest, self).setUp()
-
     @decorators.idempotent_id('d1b8b031-b622-4010-82f9-ff78a9e915c7')
     @utils.requires_ext(extension='crossdomain', service='object')
     def test_get_crossdomain_policy(self):

tempest/api/object_storage/test_healthcheck.py

@@ -21,9 +21,6 @@ from tempest.lib import decorators
 class HealthcheckTest(base.BaseObjectTest):
     """Test healthcheck"""
 
-    def setUp(self):
-        super(HealthcheckTest, self).setUp()
-
     @decorators.idempotent_id('db5723b1-f25c-49a9-bfeb-7b5640caf337')
     def test_get_healthcheck(self):
         """Test getting healthcheck"""

tempest/api/object_storage/test_object_services.py

@@ -770,11 +770,11 @@ class ObjectTest(base.BaseObjectTest):
         headers = {}
         headers['X-Copy-From'] = "%s/%s" % (str(self.container_name),
                                             str(object_name))
-        resp, body = self.object_client.create_object(self.container_name,
-                                                      object_name,
-                                                      data=None,
-                                                      metadata=metadata,
-                                                      headers=headers)
+        resp, _ = self.object_client.create_object(self.container_name,
+                                                   object_name,
+                                                   data=None,
+                                                   metadata=metadata,
+                                                   headers=headers)
         self.assertHeaders(resp, 'Object', 'PUT')
 
         # check the content type

tempest/api/object_storage/test_object_slo.py

@@ -165,6 +165,6 @@ class ObjectSloTest(base.BaseObjectTest):
 
         self.assertHeaders(resp, 'Object', 'DELETE')
 
-        resp, body = self.container_client.list_container_objects(
+        resp, _ = self.container_client.list_container_objects(
             self.container_name)
         self.assertEqual(int(resp['x-container-object-count']), 0)