diff --git a/wp-admin/admin.php b/wp-admin/admin.php
index ae2950ae64..e7ff153d1a 100644
--- a/wp-admin/admin.php
+++ b/wp-admin/admin.php
@@ -67,8 +67,6 @@ auth_redirect();
 
 nocache_headers();
 
-update_category_cache();
-
 // Schedule trash collection
 if ( !wp_next_scheduled('wp_scheduled_delete') && !defined('WP_INSTALLING') )
 	wp_schedule_event(time(), 'daily', 'wp_scheduled_delete');
diff --git a/wp-includes/category.php b/wp-includes/category.php
index 1f66518536..4d02277417 100644
--- a/wp-includes/category.php
+++ b/wp-includes/category.php
@@ -305,22 +305,6 @@ function &get_tag( $tag, $output = OBJECT, $filter = 'raw' ) {
 /* Cache */
 
 
-/**
- * Update the categories cache.
- *
- * This function does not appear to be used anymore or does not appear to be
- * needed. It might be a legacy function left over from when there was a need
- * for updating the category cache.
- *
- * @since 1.5.0
- *
- * @return bool Always return True
- */
-function update_category_cache() {
-	return true;
-}
-
-
 /**
  * Remove the category cache data based on ID.
  *
diff --git a/wp-includes/deprecated.php b/wp-includes/deprecated.php
index 9775e827fa..645de52fba 100644
--- a/wp-includes/deprecated.php
+++ b/wp-includes/deprecated.php
@@ -2556,3 +2556,22 @@ function is_plugin_page() {
 
 	return false;
 }
+
+/**
+ * Update the categories cache.
+ *
+ * This function does not appear to be used anymore or does not appear to be
+ * needed. It might be a legacy function left over from when there was a need
+ * for updating the category cache.
+ *
+ * @since 1.5.0
+ * @deprecated 3.1
+ *
+ * @return bool Always return True
+ */
+function update_category_cache() {
+	_deprecated_function( __FUNCTION__, '3.1'  );
+
+	return true;
+}
+