[gnome-control-center] info-overview: Drop unused cancellable

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 01ffa51dc62347089580591f4e975de0d441e1f3
Author: Robert Ancell <robert ancell canonical com>
Date:   Wed Sep 25 23:07:13 2019 +1200

    info-overview: Drop unused cancellable
    
    It wasn't used and there were no async calls to connect it to.

 panels/info-overview/cc-info-overview-panel.c | 8 --------
 1 file changed, 8 deletions(-)
---
diff --git a/panels/info-overview/cc-info-overview-panel.c b/panels/info-overview/cc-info-overview-panel.c
index 2ebee9c34..bdebdc77c 100644
--- a/panels/info-overview/cc-info-overview-panel.c
+++ b/panels/info-overview/cc-info-overview-panel.c
@@ -65,8 +65,6 @@ typedef struct
   GtkWidget      *virt_type_title_label;
   GtkWidget      *updates_button;
 
-  GCancellable   *cancellable;
-
   UDisksClient   *client;
 } CcInfoOverviewPanelPrivate;
 
@@ -669,12 +667,6 @@ cc_info_overview_panel_finalize (GObject *object)
 {
   CcInfoOverviewPanelPrivate *priv = cc_info_overview_panel_get_instance_private (CC_INFO_OVERVIEW_PANEL 
(object));
 
-  if (priv->cancellable)
-    {
-      g_cancellable_cancel (priv->cancellable);
-      g_clear_object (&priv->cancellable);
-    }
-
   g_clear_object (&priv->client);
 
   G_OBJECT_CLASS (cc_info_overview_panel_parent_class)->finalize (object);