diff --git a/oslo_messaging/serializer.py b/oslo_messaging/serializer.py
index 8b7c0a7a3..b1761fd83 100644
--- a/oslo_messaging/serializer.py
+++ b/oslo_messaging/serializer.py
@@ -19,7 +19,6 @@ __all__ = ['Serializer', 'NoOpSerializer', 'JsonPayloadSerializer',
 
 import abc
 
-from debtcollector import removals
 from oslo_context import context as common_context
 from oslo_serialization import jsonutils
 import six
@@ -64,7 +63,6 @@ class Serializer(object):
         """
 
 
-@removals.remove(version="2.9", removal_version="3.0")
 class RequestContextSerializer(Serializer):
 
     def __init__(self, base):