[ekiga] Remove deprecated GTK function

[Eugen Dedu <ededu src gnome org>]

commit 583e367558d5af1b0d704dfc0b032792d23df994
Author: Eugen Dedu <eugen dedu univ-fcomte fr>
Date:   Thu May 7 11:41:45 2015 +0200

    Remove deprecated GTK function
    
    Deprecated functions remain in statusicon.cpp, but that file is uncertain
    anyway.

 lib/engine/gui/gtk-frontend/preferences-window.cpp |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)
---
diff --git a/lib/engine/gui/gtk-frontend/preferences-window.cpp 
b/lib/engine/gui/gtk-frontend/preferences-window.cpp
index 1713fa2..c804ac6 100644
--- a/lib/engine/gui/gtk-frontend/preferences-window.cpp
+++ b/lib/engine/gui/gtk-frontend/preferences-window.cpp
@@ -600,11 +600,9 @@ gm_pw_init_general_page (PreferencesWindow *self,
                    G_CALLBACK (edit_blacklist_cb), (gpointer)self);
   int pos = 0;
   GTK_GRID_LAST_ROW (container, pos);
-  GtkWidget* alignment = gtk_alignment_new (0, 0, 0, 0);
-  gtk_container_add (GTK_CONTAINER (alignment), edit_blacklist_button);
+  gtk_widget_set_halign (edit_blacklist_button, GTK_ALIGN_START);
   gtk_container_set_border_width (GTK_CONTAINER (edit_blacklist_button), 0);
-
-  gtk_grid_attach (GTK_GRID (container), alignment, 0, pos-1, 2, 1);
+  gtk_grid_attach (GTK_GRID (container), edit_blacklist_button, 0, pos-1, 2, 1);
 }
 
 static void