[gnumeric] AutoFormat: use the new goc_item_destroy.

[Morten Welinder <mortenw src gnome org>]

commit 0d6cc51c8654da16545a9ecaf568bad136273bc0
Author: Morten Welinder <terra gnome org>
Date:   Mon Sep 14 13:02:21 2009 -0400

    AutoFormat: use the new goc_item_destroy.

 src/dialogs/dialog-autoformat.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/dialogs/dialog-autoformat.c b/src/dialogs/dialog-autoformat.c
index 89e55b6..158c5fa 100644
--- a/src/dialogs/dialog-autoformat.c
+++ b/src/dialogs/dialog-autoformat.c
@@ -274,14 +274,14 @@ previews_free (AutoFormatState *state)
 		return;
 
 	if (state->selrect) {
-		g_object_unref (state->selrect);
+		goc_item_destroy (state->selrect);
 		state->selrect = NULL;
 	}
 
 	for (i = 0; i < NUM_PREVIEWS; i++) {
 		GocItem *item = state->grid[i];
 		if (item) {
-			g_object_unref (state->grid[i]);
+			goc_item_destroy (state->grid[i]);
 			state->grid[i] = NULL;
 		}
 	}