diff --git a/synapse/federation/transaction_queue.py b/synapse/federation/transaction_queue.py
index 12e8df9cc6..6da60718a9 100644
--- a/synapse/federation/transaction_queue.py
+++ b/synapse/federation/transaction_queue.py
@@ -259,6 +259,7 @@ class TransactionQueue(object):
         Args:
             states (list(UserPresenceState))
         """
+        return
 
         # First we queue up the new presence by user ID, so multiple presence
         # updates in quick successtion are correctly handled