removed obsolete wp-super-memcache plugin

wp-content/plugins/wp-super-memcache/advanced-cache.php

-<?php
-# WP SUPER CACHE 1.2
-function wpcache_broken_message() {
-	if ( false == strpos( $_SERVER[ 'REQUEST_URI' ], 'wp-admin' ) )
-		echo "<!-- WP Super Cache is installed but broken. The constant WPCACHEHOME must be set in the file wp-config.php and point at the WP Super Cache plugin directory. -->";
-}
-
-if ( false == defined( 'WPCACHEHOME' ) ) {
-	define( 'ADVANCEDCACHEPROBLEM', 1 );
-} elseif ( !include_once( WPCACHEHOME . 'wp-cache-phase1.php' ) ) {
-	if ( !@is_file( WPCACHEHOME . 'wp-cache-phase1.php' ) ) {
-		define( 'ADVANCEDCACHEPROBLEM', 1 );
-	}
-}
-if ( defined( 'ADVANCEDCACHEPROBLEM' ) )
-	register_shutdown_function( 'wpcache_broken_message' );
-?>