1 files changed, 0 insertions, 4 deletions
diff --git a/synapse/storage/databases/main/events.py b/synapse/storage/databases/main/events.py
index f1f4ce5e07..eed453d836 100644
--- a/synapse/storage/databases/main/events.py
+++ b/synapse/storage/databases/main/events.py
@@ -1410,10 +1410,6 @@ class PersistEventsStore:
                 "state_key": event.state_key,
             }
 
-            # TODO: How does this work with backfilling?
-            if hasattr(event, "replaces_state"):
-                vals["prev_state"] = event.replaces_state
-
             state_values.append(vals)
 
         self.db_pool.simple_insert_many_txn(