Remove buttons from the WordPress TinyMCE editor to make a simpler interface

functions.php

<?php
// Remove buttons from TinyMCE to make a simpler interface
function simpler_tinymce_buttons( $buttons )
{
	$remove = array(
        'aligncenter',
        'alignright',
        'alignleft',
        'hr',
        'wp_more',
        'strikethrough',
        'wp_adv'
    );

	return array_diff( $buttons, $remove );
}
add_filter( 'mce_buttons', 'simpler_tinymce_buttons' );