[gtk] testcalendar: Remove unused function

[Matthias Clasen <matthiasc src gnome org>]

commit e94e70368542d42362d4b071e722992308cb945c
Author: Timm Bäder <mail baedert org>
Date:   Tue Feb 4 11:10:11 2020 +0100

    testcalendar: Remove unused function

 tests/testcalendar.c | 23 -----------------------
 1 file changed, 23 deletions(-)
---
diff --git a/tests/testcalendar.c b/tests/testcalendar.c
index f36d53c955..d060e8ccb2 100644
--- a/tests/testcalendar.c
+++ b/tests/testcalendar.c
@@ -194,29 +194,6 @@ calendar_toggle_flag (GtkWidget    *toggle,
   
 }
 
-void calendar_select_font (GtkWidget    *button,
-                                 CalendarData *calendar)
-{
-  const char *font = NULL;
-  GtkCssProvider *provider;
-  gchar *data;
-
-  if (calendar->window)
-    {
-      provider = g_object_get_data (G_OBJECT (calendar->window), "css-provider");
-      if (!provider)
-        {
-          provider = gtk_css_provider_new ();
-          gtk_style_context_add_provider (gtk_widget_get_style_context (calendar->window), 
GTK_STYLE_PROVIDER (provider), GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
-          g_object_set_data_full (G_OBJECT (calendar->window), "css-provider", provider, g_object_unref);
-        }
-      font = gtk_font_chooser_get_font (GTK_FONT_CHOOSER (button));
-      data = g_strdup_printf ("GtkCalendar { font: %s; }", font);
-      gtk_css_provider_load_from_data (provider, data, -1);
-      g_free (data);
-    }
-}
-
 static GtkWidget*
 create_frame (const char *caption,
               GtkWidget  *child,