diff --git a/synapse/storage/schema/main/delta/83/10_replica_identity_event_txn_id.sql.postgres b/synapse/storage/schema/main/delta/83/10_replica_identity_event_txn_id.sql.postgres
deleted file mode 100644
index a2bacbc96d57..000000000000
--- a/synapse/storage/schema/main/delta/83/10_replica_identity_event_txn_id.sql.postgres
+++ /dev/null
@@ -1 +0,0 @@
-ALTER TABLE event_txn_id REPLICA IDENTITY USING INDEX event_txn_id_event_id;