[gnome-shell] Remove dangerous explicit destroy

[Cosimo Cecchi <cosimoc src gnome org>]

commit ad2cb227858effa57ce977c77744c9e0781ec1a3
Author: Cosimo Cecchi <cosimo endlessm com>
Date:   Wed Jun 5 13:54:09 2013 -0700

    Remove dangerous explicit destroy
    
    There's no need to explicitly destroy the ClutterText actor inside the
    label; doing so is actually harmful, as it will break the normal
    reference cycle between container and children.
    As StLabel doesn't hold any extra reference to the ClutterText actor and
    just uses clutter_actor_add_actor() to add it to itself, let the normal
    container dispose cycle run to dispose of the reference.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=783483

 src/st/st-label.c |    6 ------
 1 files changed, 0 insertions(+), 6 deletions(-)
---
diff --git a/src/st/st-label.c b/src/st/st-label.c
index 95ba895..a7893b0 100644
--- a/src/st/st-label.c
+++ b/src/st/st-label.c
@@ -180,12 +180,6 @@ st_label_dispose (GObject   *object)
 {
   StLabelPrivate *priv = ST_LABEL (object)->priv;
 
-  if (priv->label)
-    {
-      clutter_actor_destroy (priv->label);
-      priv->label = NULL;
-    }
-
   g_clear_pointer (&priv->text_shadow_pipeline, cogl_object_unref);
 
   G_OBJECT_CLASS (st_label_parent_class)->dispose (object);