C comment: remove mention of use of t_hoff WAL structure member

Reported-by: Antonin Houska
Discussion: https://postgr.es/m/21643.1595353537@antos

Backpatch-through: 9.5

diff --git a/src/include/access/heapam_xlog.h b/src/include/access/heapam_xlog.h
index 38f7f639840d0c90c6ef8d0251b4da14b252589d..b66262a9862d45a8a252f171b2d64953b0adac74 100644 (file)
--- a/src/include/access/heapam_xlog.h
+++ b/src/include/access/heapam_xlog.h
@@ -114,8 +114,6 @@ typedef struct xl_heap_delete
  * or updated tuple in WAL; we can save a few bytes by reconstructing the
  * fields that are available elsewhere in the WAL record, or perhaps just
  * plain needn't be reconstructed.  These are the fields we must store.
- * NOTE: t_hoff could be recomputed, but we may as well store it because
- * it will come for free due to alignment considerations.
  */
 typedef struct xl_heap_header
 {