diff --git a/includes/services/core/http-basic.php b/includes/services/core/http-basic.php
index 50f28379fd6..44fe015b5b8 100644
--- a/includes/services/core/http-basic.php
+++ b/includes/services/core/http-basic.php
@@ -6,6 +6,8 @@
  * which is where the user/pass will be tested against (for a 401 response).
  *
  * @package Keyring
+ *
+ * @deprecated No longer used by the plugin itself.
  */
 class Keyring_Service_HTTP_Basic extends Keyring_Service {
 	protected $username      = null;
diff --git a/includes/services/extended/delicious.php b/includes/services/extended/delicious.php
deleted file mode 100644
index 4ace4c078e9..00000000000
--- a/includes/services/extended/delicious.php
+++ /dev/null
@@ -1,40 +0,0 @@
-<?php
-
-/**
- * Delicious.com service definition for Keyring. Uses HTTP Basic.
- * https://delicious.com/developers
- */
-
-class Keyring_Service_Delicious extends Keyring_Service_HTTP_Basic {
-	const NAME  = 'delicious';
-	const LABEL = 'delicious.com';
-
-	function __construct() {
-		parent::__construct();
-		$this->set_endpoint( 'verify', 'https://api.del.icio.us/v1/posts/update', 'GET' );
-		$this->requires_token( true );
-	}
-
-	function _get_credentials() {
-		return false;
-	}
-
-	function parse_response( $data ) {
-		return simplexml_load_string( $data );
-	}
-
-	function get_display( Keyring_Access_Token $token ) {
-		return $token->get_meta( 'username' );
-	}
-
-	function test_connection() {
-		$response = $this->request( 'https://api.del.icio.us/v1/posts/all?results=1' );
-		if ( ! Keyring_Util::is_error( $response ) ) {
-			return true;
-		}
-
-		return $response;
-	}
-}
-
-add_action( 'keyring_load_services', array( 'Keyring_Service_Delicious', 'init' ) );