WordPress: Remove unwanted menu items from the Menu Bar and Toolbar

remove_unwanted_menu_and_toolbar_items_wordpress.php

<?php
/* Remove unwanted menus in WordPress e.g. Posts, Comments and Links */
/* Inspired by http://wordpress.org/extend/plugins/white-label-cms/ */
function ctm_remove_admin_menus() {
	global $menu, $submenu;
        $exclude[0] = '';
	array_push($exclude,__('Posts','default'));
	array_push($exclude,__('Comments','default'));
	array_push($exclude,__('Links','default'));
	unset($exclude[0]);
	if (sizeof($exclude) > 0):
            if( isset($menu) && is_array($menu) ):
                foreach($menu as $mId=>$menuArray):
                    $tmp = explode(' ',$menuArray[0]);
                    if(in_array( $tmp[0] , $exclude )):
                            unset($menu[$mId]);
                    endif;
                endforeach;
            endif;
    endif;
}
add_action('admin_init', 'ctm_remove_admin_menus');

/* Remove Add Link, Add Post and Comments from the WordPress toolbar */
function ctm_admin_bar(){
	global $wp_admin_bar;
	$wp_admin_bar->remove_menu('new-post');
	$wp_admin_bar->remove_menu('new-link');
	$wp_admin_bar->remove_menu('comments');
}

add_action('wp_before_admin_bar_render', 'ctm_admin_bar', 0);