[gtk+] GtkStack: Remove gtk_widget_set_opacity call

[Timm Bäder <baedert src gnome org>]

commit b3bbe990010ef44fdeeabe3f379394f91593f20d
Author: Timm Bäder <mail baedert org>
Date:   Fri May 22 15:43:44 2015 +0200

    GtkStack: Remove gtk_widget_set_opacity call
    
    The corresponding call with 0.999 opacity is gone, so we don't need to
    reset the opacity anymore.

 gtk/gtkstack.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkstack.c b/gtk/gtkstack.c
index 302c65e..46a8f73 100644
--- a/gtk/gtkstack.c
+++ b/gtk/gtkstack.c
@@ -902,7 +902,6 @@ gtk_stack_transition_cb (GtkWidget     *widget,
 
   if (gtk_stack_set_transition_position (stack, t))
     {
-      gtk_widget_set_opacity (GTK_WIDGET (stack), 1.0);
       priv->tick_id = 0;
       g_object_notify_by_pspec (G_OBJECT (stack), stack_props[PROP_TRANSITION_RUNNING]);