Remove 'reseller' config option

The reseller feature has been implemented as built-in feature which
can not be disabled since Mitaka, and Tempest doesn't support Liberty
now. So this patch removes the corresponding config option from Tempest.

Change-Id: Ieb974047fb204674cef82cf896016d6780a4757a

releasenotes/notes/remove-deprecated-identity-reseller-option-4411c7e3951f1094.yaml

@@ -0,0 +1,4 @@
+---
+upgrade:
+  - |
+    The deprecated config option 'reseller' from identity_feature_enabled group has been removed.

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

@@ -13,8 +13,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import testtools
-
 from tempest.api.identity import base
 from tempest import config
 from tempest.lib.common.utils import data_utils
@@ -57,8 +55,6 @@ class ProjectsTestJSON(base.BaseIdentityV3AdminTest):
         self.assertEqual(project_name, body['name'])
         self.assertEqual(domain['id'], body['domain_id'])
 
-    @testtools.skipUnless(CONF.identity_feature_enabled.reseller,
-                          'Reseller not available.')
     @decorators.idempotent_id('1854f9c0-70bc-4d11-a08a-1c789d339e3d')
     def test_project_create_with_parent(self):
         # Create root project without providing a parent_id
@@ -89,8 +85,6 @@ class ProjectsTestJSON(base.BaseIdentityV3AdminTest):
         self.assertEqual(root_project_id, parent_id)
 
     @decorators.idempotent_id('a7eb9416-6f9b-4dbb-b71b-7f73aaef59d5')
-    @testtools.skipUnless(CONF.identity_feature_enabled.reseller,
-                          'Reseller not available.')
     def test_create_is_domain_project(self):
         project_name = data_utils.rand_name('is_domain_project')
         project = self.projects_client.create_project(

tempest/config.py

@@ -217,14 +217,6 @@ IdentityFeatureGroup = [
                      "entry all which indicates every extension is enabled. "
                      "Empty list indicates all extensions are disabled. "
                      "To get the list of extensions run: 'keystone discover'"),
-    # TODO(rodrigods): Remove the reseller flag when Kilo and Liberty is end
-    # of life.
-    cfg.BoolOpt('reseller',
-                default=True,
-                help='Does the environment support reseller?',
-                deprecated_for_removal=True,
-                deprecated_reason="All supported versions of OpenStack now "
-                                  "support the 'reseller' feature"),
     # TODO(rodrigods): This is a feature flag for bug 1590578 which is fixed
     # in Newton and Ocata. This option can be removed after Mitaka is end of
     # life.