Quell compiler warnings

tests/simple.c

@@ -31,10 +31,7 @@ int
 main (int argc, char *argv[])
 {
   GtkWidget *window;
-  GtkWidget *button;
 
-  /* FIXME: This is not allowable - what is this supposed to be? */
-  /*  gdk_progclass = g_strdup ("XTerm"); */
   gtk_init (&argc, &argv);
 
   window = g_object_connect (g_object_new (gtk_window_get_type (),
@@ -45,7 +42,7 @@ main (int argc, char *argv[])
                                            NULL),
                              "signal::destroy", gtk_main_quit, NULL,
                              NULL);
-  button = g_object_connect (g_object_new (gtk_button_get_type (),
+  g_object_connect (g_object_new (gtk_button_get_type (),
                                   "GtkButton::label", "hello world",
                                   "GtkWidget::parent", window,
                                   "GtkWidget::visible", TRUE,