diff --git a/config_tempest/services/compute.py b/config_tempest/services/compute.py
index cf54aeb6..98f6e8fb 100644
--- a/config_tempest/services/compute.py
+++ b/config_tempest/services/compute.py
@@ -58,10 +58,6 @@ class ComputeService(VersionedService):
             C.LOG.info('Can not retrieve hosts, user are not allowed')
             return 1
 
-    def post_configuration(self, conf, is_service):
-        conf.set('compute-feature-enabled', 'attach_encrypted_volume',
-                 str(is_service(**{'type': 'key-manager'})))
-
     @staticmethod
     def get_service_type():
         return ['compute']