[gnome-desktop/wip/muktupavels/average] bg: remove average_color_key

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 41cb0a806b3c6ec2bb54e94757da25ea7eb4e0a7
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Tue Nov 26 01:50:13 2019 +0200

    bg: remove average_color_key
    
    Unused since b8e99fc3378a commit.

 libgnome-desktop/gnome-bg.c | 9 ---------
 1 file changed, 9 deletions(-)
---
diff --git a/libgnome-desktop/gnome-bg.c b/libgnome-desktop/gnome-bg.c
index 7c193496..af870f50 100644
--- a/libgnome-desktop/gnome-bg.c
+++ b/libgnome-desktop/gnome-bg.c
@@ -100,8 +100,6 @@ enum {
        N_SIGNALS
 };
 
-static const cairo_user_data_key_t average_color_key;
-
 static guint signals[N_SIGNALS] = { 0 };
 
 G_DEFINE_TYPE (GnomeBG, gnome_bg, G_TYPE_OBJECT)
@@ -1068,7 +1066,6 @@ gnome_bg_create_surface (GnomeBG      *bg,
        gint scale;
        int pm_width, pm_height;
        cairo_surface_t *surface;
-       GdkRGBA average;
        cairo_t *cr;
        
        g_return_val_if_fail (bg != NULL, NULL);
@@ -1098,7 +1095,6 @@ gnome_bg_create_surface (GnomeBG      *bg,
        cr = cairo_create (surface);
        if (!bg->filename && bg->color_type == G_DESKTOP_BACKGROUND_SHADING_SOLID) {
                gdk_cairo_set_source_rgba (cr, &(bg->primary));
-               average = bg->primary;
        }
        else {
                GdkPixbuf *pixbuf;
@@ -1107,7 +1103,6 @@ gnome_bg_create_surface (GnomeBG      *bg,
                pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8,
                                         scale * width, scale * height);
                gnome_bg_draw_at_scale (bg, pixbuf, scale, gdk_window_get_screen (window), root);
-               pixbuf_average_value (pixbuf, &average);
 
                pixbuf_surface = gdk_cairo_surface_create_from_pixbuf (pixbuf, 0, window);
                cairo_set_source_surface (cr, pixbuf_surface, 0, 0);
@@ -1120,10 +1115,6 @@ gnome_bg_create_surface (GnomeBG     *bg,
        
        cairo_destroy (cr);
 
-       cairo_surface_set_user_data (surface, &average_color_key,
-                                    gdk_rgba_copy (&average),
-                                    (cairo_destroy_func_t) gdk_rgba_free);
-
        return surface;
 }