[gnome-color-manager] Fix a critical warning when starting gcm-viewer

[Richard Hughes <rhughes src gnome org>]

commit c58e68f86068049237e599243ccbbb90abfc2bde
Author: Richard Hughes <richard hughsie com>
Date:   Wed Oct 14 16:11:38 2015 +0100

    Fix a critical warning when starting gcm-viewer

 src/gcm-viewer.c |   12 ------------
 1 files changed, 0 insertions(+), 12 deletions(-)
---
diff --git a/src/gcm-viewer.c b/src/gcm-viewer.c
index feb2ba8..bc28c33 100644
--- a/src/gcm-viewer.c
+++ b/src/gcm-viewer.c
@@ -161,15 +161,6 @@ gcm_viewer_image_prev_cb (GtkWidget *widget, GcmViewerPrivate *viewer)
 }
 
 /**
- * gcm_viewer_button_close_cb:
- **/
-static void
-gcm_viewer_button_close_cb (GtkWidget *widget, GcmViewerPrivate *viewer)
-{
-       g_application_release (G_APPLICATION (viewer->application));
-}
-
-/**
  * gcm_viewer_profile_kind_to_icon_name:
  **/
 static const gchar *
@@ -1620,9 +1611,6 @@ gcm_viewer_startup_cb (GApplication *application, GcmViewerPrivate *viewer)
        widget = GTK_WIDGET (gtk_builder_get_object (viewer->builder, "button_image_prev1"));
        g_signal_connect (widget, "clicked",
                          G_CALLBACK (gcm_viewer_image_prev_cb), viewer);
-       widget = GTK_WIDGET (gtk_builder_get_object (viewer->builder, "button_close"));
-       g_signal_connect (widget, "clicked",
-                         G_CALLBACK (gcm_viewer_button_close_cb), viewer);
 
        /* use named colors */
        widget = GTK_WIDGET (gtk_builder_get_object (viewer->builder,