[libgd] main-box-generic: Remove unused variable and function call

[Debarshi Ray <debarshir src gnome org>]

commit d4caf93ad7236d6173fe494e41b1ff0adbc2be62
Author: Debarshi Ray <debarshir gnome org>
Date:   Fri Feb 17 18:11:01 2017 +0100

    main-box-generic: Remove unused variable and function call
    
    Fallout from 7ea63a7ff633dfaef9663d741ae8fc45fc6af31f
    
    https://bugzilla.gnome.org/show_bug.cgi?id=774914

 libgd/gd-main-box-generic.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/libgd/gd-main-box-generic.c b/libgd/gd-main-box-generic.c
index 8ba03d4..0d18764 100644
--- a/libgd/gd-main-box-generic.c
+++ b/libgd/gd-main-box-generic.c
@@ -472,11 +472,8 @@ gd_main_box_generic_toggle_selection_for_child (GdMainBoxGeneric *self,
                                                 gboolean select_range)
 {
   GListModel *model;
-  const gchar *last_selected_id;
 
   model = gd_main_box_generic_get_model (self);
-  last_selected_id = gd_main_box_generic_get_last_selected_id (self);
-
   if (model == NULL)
     return;