[grilo-plugins] youtube: remove unused variable

[Victor Toso de Carvalho <victortoso src gnome org>]

commit b63fa21284116a3f32f50d0012fb093301eb50cb
Author: Victor Toso <me victortoso com>
Date:   Mon Sep 5 15:06:32 2016 +0200

    youtube: remove unused variable
    
    grl-youtube.c:591:10: warning: unused variable ‘id’ [-Wunused-variable]
      gchar *id;
             ^~
    
    https://bugzilla.gnome.org/show_bug.cgi?id=770806

 src/youtube/grl-youtube.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/src/youtube/grl-youtube.c b/src/youtube/grl-youtube.c
index 621f7c3..3006d28 100644
--- a/src/youtube/grl-youtube.c
+++ b/src/youtube/grl-youtube.c
@@ -584,7 +584,6 @@ build_categories_directory_read_cb (GObject *source_object,
   guint total = 0;
   GList *all = NULL, *iter;
   CategoryInfo *cat_info;
-  gchar *id;
   guint index = 0;
 
   GRL_DEBUG (G_STRFUNC);