Create more secure passwords by default

Signed-off-by: Joas Schilling <coding@schilljs.com>

Author: nickvergessen

lib/private/Setup/MySQL.php

@@ -161,10 +161,6 @@ private function createSpecificUser($username, $connection) {
 					if (count($data) === 0) {
 						//use the admin login data for the new database user
 						$this->dbUser = $adminUser;
-
-						//create a random password so we don't need to store the admin password in the config file
-						$this->dbPassword = $this->random->generate(30, ISecureRandom::CHAR_ALPHANUMERIC);
-
 						$this->createDBUser($connection);
 
 						break;