[gdk-pixbuf] animation: drop an erroneous unref

[Matthias Clasen <matthiasc src gnome org>]

commit 5d6c69598f2afa36ae0186fc9f4918630c282cf0
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Sep 19 15:34:59 2015 -0400

    animation: drop an erroneous unref
    
    The task thread function does not own a reference to the task
    and thus should not unref it.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=755269

 gdk-pixbuf/gdk-pixbuf-animation.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/gdk-pixbuf/gdk-pixbuf-animation.c b/gdk-pixbuf/gdk-pixbuf-animation.c
index 191335a..f273b56 100644
--- a/gdk-pixbuf/gdk-pixbuf-animation.c
+++ b/gdk-pixbuf/gdk-pixbuf-animation.c
@@ -413,8 +413,6 @@ animation_new_from_stream_thread (GTask        *task,
        } else {
                 g_task_return_pointer (task, animation, g_object_unref);
        }
-
-        g_object_unref (task);
 }
 
 /**