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 695eaa1e49cc998a93decd95c2410de4c4f38826..5c45f96bc257b05e5b89fba4844767d6840fa5f6 100644 (file)
--- a/src/include/access/heapam_xlog.h
+++ b/src/include/access/heapam_xlog.h
@@ -136,8 +136,6 @@ typedef struct xl_heap_truncate
  * 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
 {