diff --git a/nova/api/openstack/compute/servers.py b/nova/api/openstack/compute/servers.py
index 291b9a02641d..569f560ac154 100644
--- a/nova/api/openstack/compute/servers.py
+++ b/nova/api/openstack/compute/servers.py
@@ -95,31 +95,6 @@ class ServersController(wsgi.Controller):
     def __init__(self, **kwargs):
         def _check_load_extension(required_function):
 
-            def should_load_extension(ext):
-                # Check whitelist is either empty or if not then the extension
-                # is in the whitelist
-                whitelist = CONF.osapi_v21.extensions_whitelist
-                blacklist = CONF.osapi_v21.extensions_blacklist
-                if not whitelist:
-                    # if there is no whitelist, we accept everything,
-                    # so we only care about the blacklist.
-                    if ext.obj.alias in blacklist:
-                        return False
-                    else:
-                        return True
-                else:
-                    if ext.obj.alias in whitelist:
-                        if ext.obj.alias in blacklist:
-                            LOG.warning(
-                                "Extension %s is both in whitelist and "
-                                "blacklist, blacklisting takes precedence",
-                                ext.obj.alias)
-                            return False
-                        else:
-                            return True
-                    else:
-                        return False
-
             def check_load_extension(ext):
                 if isinstance(ext.obj, extensions.V21APIExtensionBase):
                     # Filter out for the existence of the required
@@ -133,7 +108,7 @@ class ServersController(wsgi.Controller):
                                   'servers extension for function %(func)s',
                                   {'ext_alias': ext.obj.alias,
                                    'func': required_function})
-                        return should_load_extension(ext)
+                        return True
                     else:
                         LOG.debug(
                             'extension %(ext_alias)s is missing %(func)s',
diff --git a/nova/conf/osapi_v21.py b/nova/conf/osapi_v21.py
index d3ee8ac95b2f..6e1b7146e1c1 100644
--- a/nova/conf/osapi_v21.py
+++ b/nova/conf/osapi_v21.py
@@ -18,49 +18,6 @@ from oslo_config import cfg
 api_opts_group = cfg.OptGroup(name="osapi_v21", title="API v2.1 Options")
 
 api_opts = [
-    cfg.ListOpt("extensions_blacklist",
-        default=[],
-        deprecated_for_removal=True,
-        deprecated_since="12.0.0",
-        deprecated_reason="""
-API extensions are now part of the standard API. API extensions should be
-disabled using policy, rather than via these configuration options.""",
-        help="""
-This option is a list of all of the v2.1 API extensions to never load.
-
-Possible values:
-
-* A list of strings, each being the alias of an extension that you do not
-  wish to load.
-
-Related options:
-
-* enabled
-* extensions_whitelist
-"""),
-    cfg.ListOpt("extensions_whitelist",
-        default=[],
-        deprecated_for_removal=True,
-        deprecated_since="12.0.0",
-        deprecated_reason="""
-API extensions are now part of the standard API. API extensions should be
-disabled using policy, rather than via these configuration options.""",
-        help="""
-This is a list of extensions. If it is empty, then *all* extensions except
-those specified in the extensions_blacklist option will be loaded. If it is not
-empty, then only those extensions in this list will be loaded, provided that
-they are also not in the extensions_blacklist option.
-
-Possible values:
-
-* A list of strings, each being the alias of an extension that you wish to
-  load, or an empty list, which indicates that all extensions are to be run.
-
-Related options:
-
-* enabled
-* extensions_blacklist
-"""),
     cfg.StrOpt("project_id_regex",
         deprecated_for_removal=True,
         deprecated_since="13.0.0",
diff --git a/releasenotes/notes/remove-deprecated-extensions-enable-config-options-d6b3d62a6cc1cbe5.yaml b/releasenotes/notes/remove-deprecated-extensions-enable-config-options-d6b3d62a6cc1cbe5.yaml
new file mode 100644
index 000000000000..17829e075018
--- /dev/null
+++ b/releasenotes/notes/remove-deprecated-extensions-enable-config-options-d6b3d62a6cc1cbe5.yaml
@@ -0,0 +1,7 @@
+---
+upgrade:
+  - |
+    Deprecated config options to enable/disable extensions
+    ``extensions_blacklist`` and ``extensions_whitelist`` have been removed.
+    This means all API extensions are always enabled. If you modifed policy,
+    please double check you have the correct policy settings for all APIs.
\ No newline at end of file