Fix tempest cleanup command

Closes-Bug: #1527503

Change-Id: Id4fb768a8cbe7f2f314e249ca4ae869b8efcdafd
diff --git a/tempest/cmd/cleanup_service.py b/tempest/cmd/cleanup_service.py
index 032b8b4..c2f3885 100644
--- a/tempest/cmd/cleanup_service.py
+++ b/tempest/cmd/cleanup_service.py
@@ -855,7 +855,7 @@
             self.data['users'][user['id']] = user['name']
 
 
-class RoleService(IdentityService):
+class RoleService(BaseService):
 
     def __init__(self, manager, **kwargs):
         super(RoleService, self).__init__(kwargs)
@@ -895,7 +895,7 @@
             self.data['roles'][role['id']] = role['name']
 
 
-class TenantService(IdentityService):
+class TenantService(BaseService):
 
     def __init__(self, manager, **kwargs):
         super(TenantService, self).__init__(kwargs)