diff --git a/src/backend/access/heap/heapam.c b/src/backend/access/heap/heapam.c
index 419da8784a..34624d6953 100644
--- a/src/backend/access/heap/heapam.c
+++ b/src/backend/access/heap/heapam.c
@@ -1396,15 +1396,6 @@ heap_getnextslot(TableScanDesc sscan, ScanDirection direction, TupleTableSlot *s
  * If the tuple is found but fails the time qual check, then false is returned
  * but tuple->t_data is left pointing to the tuple.
  *
- * keep_buf determines what is done with the buffer in the false-result cases.
- * When the caller specifies keep_buf = true, we retain the pin on the buffer
- * and return it in *userbuf (so the caller must eventually unpin it); when
- * keep_buf = false, the pin is released and *userbuf is set to InvalidBuffer.
- *
- * stats_relation is the relation to charge the heap_fetch operation against
- * for statistical purposes.  (This could be the heap rel itself, an
- * associated index, or NULL to not count the fetch at all.)
- *
  * heap_fetch does not follow HOT chains: only the exact TID requested will
  * be fetched.
  *