diff --git a/src/backend/storage/ipc/procarray.c b/src/backend/storage/ipc/procarray.c
index 31dddaf0ed..518c6d74b2 100644
--- a/src/backend/storage/ipc/procarray.c
+++ b/src/backend/storage/ipc/procarray.c
@@ -1926,9 +1926,7 @@ ProcArrayInstallRestoredXmin(TransactionId xmin, PGPROC *proc)
  * that bookkeeping.
  *
  * Note that if any transaction has overflowed its cached subtransactions
- * then there is no real need include any subtransactions. That isn't a
- * common enough case to worry about optimising the size of the WAL record,
- * and we may wish to see that data for diagnostic purposes anyway.
+ * then there is no real need include any subtransactions.
  */
 RunningTransactions
 GetRunningTransactionData(void)
diff --git a/src/backend/storage/ipc/standby.c b/src/backend/storage/ipc/standby.c
index 44ed20992e..38d6db1e12 100644
--- a/src/backend/storage/ipc/standby.c
+++ b/src/backend/storage/ipc/standby.c
@@ -1050,11 +1050,6 @@ LogAccessExclusiveLock(Oid dbOid, Oid relOid)
 
 	xlrec.xid = GetCurrentTransactionId();
 
-	/*
-	 * Decode the locktag back to the original values, to avoid sending lots
-	 * of empty bytes with every message.  See lock.h to check how a locktag
-	 * is defined for LOCKTAG_RELATION
-	 */
 	xlrec.dbOid = dbOid;
 	xlrec.relOid = relOid;