Remove the unused notifier.add_driver() API

This was only needed to support the plugins framework which is now
removed.

Change-Id: Id3d08c23f7791bfef9739f1f65af844fd429777c

1 files changed, 7 insertions, 20 deletions

diff --git a/openstack/common/notifier/api.py b/openstack/common/notifier/api.py
index dc4f578..492b906 100644
--- a/openstack/common/notifier/api.py
+++ b/openstack/common/notifier/api.py
@@ -157,29 +157,16 @@ def _get_drivers():
     if _drivers is None:
         _drivers = {}
         for notification_driver in CONF.notification_driver:
-            add_driver(notification_driver)
-
+            try:
+                driver = importutils.import_module(notification_driver)
+                _drivers[notification_driver] = driver
+            except ImportError:
+                LOG.exception(_("Failed to load notifier %s. "
+                                "These notifications will not be sent.") %
+                              notification_driver)
     return _drivers.values()
 
 
-def add_driver(notification_driver):
-    """Add a notification driver at runtime."""
-    # Make sure the driver list is initialized.
-    _get_drivers()
-    if isinstance(notification_driver, basestring):
-        # Load and add
-        try:
-            driver = importutils.import_module(notification_driver)
-            _drivers[notification_driver] = driver
-        except ImportError:
-            LOG.exception(_("Failed to load notifier %s. "
-                            "These notifications will not be sent.") %
-                          notification_driver)
-    else:
-        # Driver is already loaded; just add the object.
-        _drivers[notification_driver] = notification_driver
-
-
 def _reset_drivers():
     """Used by unit tests to reset the drivers."""
     global _drivers