[gnome-commander] fix warning: drop unused declaration

[Uwe Scholz <uwescholz src gnome org>]

commit 03da2463c7515f2f6e4640348c2ffa10756e2422
Author: Andreas Henriksson <andreas fatal se>
Date:   Tue Apr 18 23:35:30 2017 +0200

    fix warning: drop unused declaration
    
    viewer-window.cc: At global scope:
    viewer-window.cc:178:13: error: ‘void set_zoom_best_fit(GViewerWindow*)’ declared ‘static’ but never 
defined [-Werror=unused-function]
     static void set_zoom_best_fit(GViewerWindow *obj);
                 ^~~~~~~~~~~~~~~~~

 src/intviewer/viewer-window.cc |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/src/intviewer/viewer-window.cc b/src/intviewer/viewer-window.cc
index 4b186c8..4d5c7ec 100644
--- a/src/intviewer/viewer-window.cc
+++ b/src/intviewer/viewer-window.cc
@@ -175,8 +175,6 @@ static void menu_settings_save_settings(GtkMenuItem *item, GViewerWindow *obj);
 static void menu_help_quick_help(GtkMenuItem *item, GViewerWindow *obj);
 static void menu_help_keyboard(GtkMenuItem *item, GViewerWindow *obj);
 
-static void set_zoom_best_fit(GViewerWindow *obj);
-
 inline GtkTreeModel *create_model ();
 inline void fill_model (GtkTreeStore *treestore, GnomeCmdFile *f);
 inline GtkWidget *create_view ();