WP Remove unwanted dashboard items

gistfile1.php

// Remove unwanted dashboard items
add_action('wp_dashboard_setup', 'my_custom_dashboard_widgets');

function my_custom_dashboard_widgets() {
	global $wp_meta_boxes;

	//QuickPress
	unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_quick_press']);
	//Wordpress Development Blog Feed
	unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_primary']);
	//Other Wordpress News Feed
	unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_secondary']);
	//Plugins - Popular, New and Recently updated Wordpress Plugins
	unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_plugins']);
}