diff --git a/includes/Auth.php b/includes/Auth.php
deleted file mode 100644
index bca4109..0000000
--- a/includes/Auth.php
+++ /dev/null
@@ -1,33 +0,0 @@
-<?php
-/**
- * Authentication provider interface
- *
- * @package Requests
- * @subpackage Authentication
- */
-
-/**
- * Authentication provider interface
- *
- * Implement this interface to act as an authentication provider.
- *
- * Parameters should be passed via the constructor where possible, as this
- * makes it much easier for users to use your provider.
- *
- * @see Requests_Hooks
- * @package Requests
- * @subpackage Authentication
- */
-interface Requests_Auth {
-	/**
-	 * Register hooks as needed
-	 *
-	 * This method is called in {@see Requests::request} when the user has set
-	 * an instance as the 'auth' option. Use this callback to register all the
-	 * hooks you'll need.
-	 *
-	 * @see Requests_Hooks::register
-	 * @param Requests_Hooks $hooks Hook system
-	 */
-	public function register(Requests_Hooks &$hooks);
-}
\ No newline at end of file