[gtk+/gtk-3-16] list box: Remove unnecessary checks

[Matthias Clasen <matthiasc src gnome org>]

commit 66f9dcd93b125f93a941a40453aac15f9f99c521
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Jul 17 18:40:11 2015 -0400

    list box: Remove unnecessary checks
    
    Again, coverity takes these as clues to complain.

 gtk/gtklistbox.c |    7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)
---
diff --git a/gtk/gtklistbox.c b/gtk/gtklistbox.c
index a4dfecf..d152439 100644
--- a/gtk/gtklistbox.c
+++ b/gtk/gtklistbox.c
@@ -2177,9 +2177,9 @@ gtk_list_box_update_header (GtkListBox    *box,
     return;
 
   row = g_sequence_get (iter);
+  g_object_ref (row);
+
   before_iter = gtk_list_box_get_previous_visible (box, iter);
-  if (row)
-    g_object_ref (row);
   before_row = NULL;
   if (before_iter != NULL)
     {
@@ -2227,8 +2227,7 @@ gtk_list_box_update_header (GtkListBox    *box,
     }
   if (before_row)
     g_object_unref (before_row);
-  if (row)
-    g_object_unref (row);
+  g_object_unref (row);
 }
 
 static void