[evolution] Remove unused e_tree_memory_set_node_destroy_func().

[Matthew Barnes <mbarnes src gnome org>]

commit a0960cf4ff54401023c891c58e7a85a32bd75959
Author: Matthew Barnes <mbarnes redhat com>
Date:   Sat Jun 15 10:11:28 2013 -0400

    Remove unused e_tree_memory_set_node_destroy_func().

 .../evolution-util/evolution-util-sections.txt     |    1 -
 e-util/e-tree-memory.c                             |   14 --------------
 e-util/e-tree-memory.h                             |    4 ----
 3 files changed, 0 insertions(+), 19 deletions(-)
---
diff --git a/doc/reference/evolution-util/evolution-util-sections.txt 
b/doc/reference/evolution-util/evolution-util-sections.txt
index e04d7a8..90acc07 100644
--- a/doc/reference/evolution-util/evolution-util-sections.txt
+++ b/doc/reference/evolution-util/evolution-util-sections.txt
@@ -4293,7 +4293,6 @@ e_tree_memory_thaw
 e_tree_memory_set_expanded_default
 e_tree_memory_node_get_data
 e_tree_memory_node_set_data
-e_tree_memory_set_node_destroy_func
 <SUBSECTION Standard>
 E_TREE_MEMORY
 E_IS_TREE_MEMORY
diff --git a/e-util/e-tree-memory.c b/e-util/e-tree-memory.c
index 017bb49..aacb275 100644
--- a/e-util/e-tree-memory.c
+++ b/e-util/e-tree-memory.c
@@ -76,8 +76,6 @@ struct _ETreeMemoryPrivate {
        gboolean         expanded_default;
 
        gint             frozen;
-       GFunc            destroy_func;
-       gpointer         destroy_user_data;
 };
 
 /* ETreeMemoryPath functions */
@@ -555,10 +553,6 @@ child_free (ETreeMemory *tree_memory,
                child = next;
        }
 
-       if (tree_memory->priv->destroy_func) {
-               tree_memory->priv->destroy_func (node->node_data, tree_memory->priv->destroy_user_data);
-       }
-
        g_slice_free (ETreeMemoryPath, node);
 }
 
@@ -611,11 +605,3 @@ e_tree_memory_node_remove (ETreeMemory *tree_memory,
        return ret;
 }
 
-void
-e_tree_memory_set_node_destroy_func (ETreeMemory *tree_memory,
-                                     GFunc destroy_func,
-                                     gpointer user_data)
-{
-       tree_memory->priv->destroy_func = destroy_func;
-       tree_memory->priv->destroy_user_data = user_data;
-}
diff --git a/e-util/e-tree-memory.h b/e-util/e-tree-memory.h
index 2e18b56..bb9b325 100644
--- a/e-util/e-tree-memory.h
+++ b/e-util/e-tree-memory.h
@@ -94,10 +94,6 @@ gpointer     e_tree_memory_node_get_data     (ETreeMemory *tree_memory,
 void           e_tree_memory_node_set_data     (ETreeMemory *tree_memory,
                                                 ETreePath node,
                                                 gpointer node_data);
-void           e_tree_memory_set_node_destroy_func
-                                               (ETreeMemory *tree_memory,
-                                                GFunc destroy_func,
-                                                gpointer user_data);
 
 G_END_DECLS