nbtree: Remove obsolete _bt_pgaddtup() comments.

Remove comments that are a throw back to a time when nbtree cared about
write-ordering dependencies.  The comments are similar to those removed
by commit 9ee7414e, among others.

diff --git a/src/backend/access/nbtree/nbtinsert.c b/src/backend/access/nbtree/nbtinsert.c
index 2c3656c1cd3508f616aa2beb6eeeafcc3a808f90..00df0e1b88fbb51d03ee98fec48d629a082349d2 100644 (file)
--- a/src/backend/access/nbtree/nbtinsert.c
+++ b/src/backend/access/nbtree/nbtinsert.c
@@ -2531,11 +2531,6 @@ _bt_newroot(Relation rel, Buffer lbuf, Buffer rbuf)
 /*
  * _bt_pgaddtup() -- add a data item to a particular page during split.
  *
- *     This routine adds the tuple to the page as requested.  It does
- *     not affect pin/lock status, but you'd better have a write lock
- *     and pin on the target buffer!  Don't forget to write and release
- *     the buffer afterwards, either.
- *
  *     The difference between this routine and a bare PageAddItem call is
  *     that this code knows that the leftmost data item on an internal
  *     btree page has a key that must be treated as minus infinity.