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 {
    /** @access protected */
    var $password_hash;
  
    /** Set allowed password
    * @param string result of password_hash
    */
    function __construct($password_hash) {
        $this->password_hash = $password_hash;
    }
    function credentials() {...

PHP:

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

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