cron.php is reworked, other worker files had been moved temporarily

include/dbupdate.php

@@ -1,13 +0,0 @@
-<?php
-
-use Friendica\Core\Config;
-
-function dbupdate_run(&$argv, &$argc) {
-	global $a;
-
-	// We are deleting the latest dbupdate entry.
-	// This is done to avoid endless loops because the update was interupted.
-	Config::delete('database', 'dbupdate_'.DB_UPDATE_VERSION);
-
-	update_db($a);
-}