remove unused code (#19701)

* remove unused code

* add changelog

openstack_controller/changelog.d/19701.fixed

@@ -0,0 +1 @@
+Remove unused code.

openstack_controller/datadog_checks/openstack_controller/api/api.py

@@ -10,10 +10,6 @@ class Api(ABC):
     def auth_url(self):
         pass  # pragma: no cover
 
-    @abstractmethod
-    def has_admin_role(self):
-        pass  # pragma: no cover
-
     @abstractmethod
     def authorize_user(self):
         pass  # pragma: no cover

openstack_controller/datadog_checks/openstack_controller/api/api_rest.py

@@ -19,14 +19,10 @@ def __init__(self, config, logger, http):
         self._region_id = self.config.endpoint_region_id
         self._catalog = None
         self._current_project_id = None
-        self._role_names = None
 
     def auth_url(self):
         return self.config.keystone_server_url
 
-    def has_admin_role(self):
-        return 'admin' in self._role_names
-
     def component_in_catalog(self, component_types):
         return self._catalog.has_component(component_types)
 
@@ -123,7 +119,6 @@ def _authorize_data(self, data):
             self._interface,
             self._region_id,
         )
-        self._role_names = [role.get('name') for role in response_json.get('token', {}).get('roles', [])]
         self.http.options['headers']['X-Auth-Token'] = response.headers['X-Subject-Token']
 
     def _add_microversion_headers(self):