How to use adminer without password basing on login-password-less plugins

Hello,
I want to use adminer without password.
I uploaded adminer-4.7.7-en.php file and finding login-password-less plugin
I create file plugins/login-password-less.php with content :

<?php
class AdminerLoginPasswordLess {
[…]

See original post by invalid@example.com (mstdmstd)