diff -r bb144d08cd44 -r 4b3219fab71c src/tree.c
--- a/src/tree.c	Sun Oct 03 14:06:57 2021 +0200
+++ b/src/tree.c	Sun Oct 03 15:40:38 2021 +0200
@@ -31,14 +31,6 @@
 
 #define CX_TR_PTR(cur, off) ((void**)(((char*)cur)+off))
 
-void *cx_tree_last(void *node, ptrdiff_t loc_next) {
-    void *last;
-    do {
-        last = node;
-    } while ((node = *CX_TR_PTR(node, loc_next)) != NULL);
-    return last;
-}
-
 void cx_tree_add_sibling(void *node, ptrdiff_t loc_prev, ptrdiff_t loc_next, ptrdiff_t loc_parent, void *new_node) {
     cx_linked_list_add(&node, NULL, loc_prev, loc_next, new_node);