[goobox] removed invalid function call

[Paolo Bacchilega <paobac src gnome org>]

commit 79484bb9deb015e72f3c46e9ed2edbbf62f24f6d
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sat Dec 29 13:19:42 2018 +0100

    removed invalid function call

 src/goo-player-progress.c | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/src/goo-player-progress.c b/src/goo-player-progress.c
index 8b83226..135541d 100644
--- a/src/goo-player-progress.c
+++ b/src/goo-player-progress.c
@@ -230,7 +230,6 @@ goo_player_progress_construct (GooPlayerProgress *self)
        gtk_stack_set_vhomogeneous (GTK_STACK (main_box), TRUE);
        gtk_stack_set_transition_type (GTK_STACK (main_box), GTK_STACK_TRANSITION_TYPE_SLIDE_UP_DOWN);
        gtk_container_set_border_width (GTK_CONTAINER (main_box), 10);
-       gtk_box_set_spacing (GTK_BOX (main_box), 6);
        gtk_widget_show (main_box);
        gtk_box_pack_start (GTK_BOX (self), main_box, TRUE, TRUE, 0);