diff --git a/synapse/federation/transaction_queue.py b/synapse/federation/transaction_queue.py
index d72b057e28..b9d0639a1b 100644
--- a/synapse/federation/transaction_queue.py
+++ b/synapse/federation/transaction_queue.py
@@ -303,6 +303,7 @@ 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