[gtk/matthiasc/a11y-logging] treeview: Remove an unused variable

[Matthias Clasen <matthiasc src gnome org>]

commit 2b7bc46495d588b229b497fbd310d9526f75283c
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Jul 17 10:57:34 2020 -0400

    treeview: Remove an unused variable
    
    This breaks the ci build on win32.

 gtk/gtktreeview.c | 3 ---
 1 file changed, 3 deletions(-)
---
diff --git a/gtk/gtktreeview.c b/gtk/gtktreeview.c
index 242e8f028d..816be8fd68 100644
--- a/gtk/gtktreeview.c
+++ b/gtk/gtktreeview.c
@@ -10694,7 +10694,6 @@ gtk_tree_view_remove_column (GtkTreeView       *tree_view,
                              GtkTreeViewColumn *column)
 {
   GtkTreeViewPrivate *priv = gtk_tree_view_get_instance_private (tree_view);
-  guint position;
 
   g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
@@ -10718,8 +10717,6 @@ gtk_tree_view_remove_column (GtkTreeView       *tree_view,
                                         G_CALLBACK (column_sizing_notify),
                                         tree_view);
 
-  position = g_list_index (priv->columns, column);
-
   _gtk_tree_view_column_unset_tree_view (column);
 
   priv->columns = g_list_remove (priv->columns, column);