[krb5-auth-dialog] prefs: No need to guard 'constructed'

[Guido Günther <guidog src gnome org>]

commit 19a5dd73b8758ec37d907ac4e5bf42fbefb978d6
Author: Guido Günther <agx sigxcpu org>
Date:   Thu Oct 20 17:00:09 2022 +0200

    prefs: No need to guard 'constructed'

 src/ka-preferences.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
---
diff --git a/src/ka-preferences.c b/src/ka-preferences.c
index e8ab020..dd16d37 100644
--- a/src/ka-preferences.c
+++ b/src/ka-preferences.c
@@ -481,8 +481,7 @@ ka_preferences_constructed (GObject *object)
 {
   KaPreferences *self = KA_PREFERENCES (object);
 
-  if (G_OBJECT_CLASS (ka_preferences_parent_class)->constructed != NULL)
-    G_OBJECT_CLASS (ka_preferences_parent_class)->constructed (object);
+  G_OBJECT_CLASS (ka_preferences_parent_class)->constructed (object);
 
   g_assert_nonnull (self->applet);
   self->settings = ka_applet_get_settings(self->applet);