Modify TinyMCE in Wordpress to exclude buttons

functions.php

/*
 * Modifying TinyMCE editor to remove unused items.
 */
function customformatTinyMCE($init) {
	// Add block format elements you want to show in dropdown
	$init['theme_advanced_blockformats'] = 'p,h1,h2,h3,h4,h5,h6,div';
	$init['theme_advanced_disable'] = 'justifyfull,pasteword';
	$init['theme_advanced_buttons2_add'] = 'styleselect';
  $init['theme_advanced_styles'] = 'Align Right=alignright, Align Left=alignleft';

	return $init;
}

// Modify Tiny_MCE init
add_filter('tiny_mce_before_init', 'customformatTinyMCE' );