diff --git a/modules/taxonomy/taxonomy.module b/modules/taxonomy/taxonomy.module
index cad3049f86cb..8e70c5a848e6 100644
--- a/modules/taxonomy/taxonomy.module
+++ b/modules/taxonomy/taxonomy.module
@@ -572,24 +572,6 @@ function taxonomy_terms_static_reset() {
   entity_get_controller('taxonomy_term')->resetCache();
 }
 
-/**
- * Generate a set of options for selecting a term from all vocabularies.
- */
-function taxonomy_form_all() {
-  $vocabularies = taxonomy_get_vocabularies();
-  $options = array();
-  foreach ($vocabularies as $vid => $vocabulary) {
-    $tree = taxonomy_get_tree($vid);
-    if ($tree && (count($tree) > 0)) {
-      $options[$vocabulary->name] = array();
-      foreach ($tree as $term) {
-        $options[$vocabulary->name][$term->tid] = str_repeat('-', $term->depth) . $term->name;
-      }
-    }
-  }
-  return $options;
-}
-
 /**
  * Return an array of all vocabulary objects.
  *