Remove buttons/items from the WordPress TinyMCE editor

remove-tinymce-editor-buttons.php

<?php
/**
 * Removes buttons from the first row of the tiny mce editor
 *
 * @link     http://thestizmedia.com/remove-buttons-items-wordpress-tinymce-editor/
 *
 * @param    array    $buttons    The default array of buttons
 * @return   array                The updated array of buttons that exludes some items
 */
add_filter( 'mce_buttons', 'jivedig_remove_tiny_mce_buttons_from_editor');
function jivedig_remove_tiny_mce_buttons_from_editor( $buttons ) {

    $remove_buttons = array(
        'bold',
        'italic',
        'strikethrough',
        'bullist',
        'numlist',
        'blockquote',
        'hr', // horizontal line
        'alignleft',
        'aligncenter',
        'alignright',
        'link',
        'unlink',
        'wp_more', // read more link
        'spellchecker',
        'dfw', // distraction free writing mode
        'wp_adv', // kitchen sink toggle (if removed, kitchen sink will always display)
    );
    foreach ( $buttons as $button_key => $button_value ) {
        if ( in_array( $button_value, $remove_buttons ) ) {
            unset( $buttons[ $button_key ] );
        }
    }
    return $buttons;
}

/**
 * Removes buttons from the second row (kitchen sink) of the tiny mce editor
 *
 * @link     http://thestizmedia.com/remove-buttons-items-wordpress-tinymce-editor/
 *
 * @param    array    $buttons    The default array of buttons in the kitchen sink
 * @return   array                The updated array of buttons that exludes some items
 */
add_filter( 'mce_buttons_2', 'jivedig_remove_tiny_mce_buttons_from_kitchen_sink');
function jivedig_remove_tiny_mce_buttons_from_kitchen_sink( $buttons ) {

    $remove_buttons = array(
        'formatselect', // format dropdown menu for <p>, headings, etc
        'underline',
        'alignjustify',
        'forecolor', // text color
        'pastetext', // paste as text
        'removeformat', // clear formatting
        'charmap', // special characters
        'outdent',
        'indent',
        'undo',
        'redo',
        'wp_help', // keyboard shortcuts
    );
    foreach ( $buttons as $button_key => $button_value ) {
        if ( in_array( $button_value, $remove_buttons ) ) {
            unset( $buttons[ $button_key ] );
        }
    }
    return $buttons;
}

Thanks heaps for this @JiveDig. Note that strikethrough and horizontal line have since moved to the kitchen sink.

hi .. thanks for this .. but please i am newbie in php and wordpress . so my question is
what of if i would like remove button depending of the post_type