bcachefs: traverse_all() shouldn't be restarting the transaction

We're only called by bch2_trans_begin() now.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>

fs/bcachefs/btree_iter.c

@@ -1335,15 +1335,6 @@ static int __btree_iter_traverse_all(struct btree_trans *trans, int ret,
 		if (ret)
 			goto retry_all;
 	}
-
-	if (hweight64(trans->iters_live) > 1)
-		ret = btree_trans_restart(trans);
-	else
-		trans_for_each_iter(trans, iter)
-			if (iter->flags & BTREE_ITER_KEEP_UNTIL_COMMIT) {
-				ret = btree_trans_restart(trans);
-				break;
-			}
 out:
 	bch2_btree_cache_cannibalize_unlock(c);