hide_login_password_wordpress.php

<?php 
add_action( 'login_head', 'wpse_121687_hide_login' );
function wpse_121687_hide_login() {
    $style = '';
     $style .= '<style type="text/css">';
     $style .= '.login form .user-pass-wrap{ display: none }';
	 $style .= '.login form .submit { display: none }';
	 $style .= '.login form .forgetmenot { display: none }';
	 $style .= '.login form .input { display: none }';
	 $style .= '.login form label { display: none }';
	 $style .= '.login  #nav { display: none }';
	 $style .= '.login  #mo_saml_button b { display: none }';
	$style .= '#login {margin-top: 150px}';
    $style .= '</style>';

     echo $style; 
}
?>