Remove columns from WordPress Posts Listing (Admin area)

gistfile1.txt

add_filter('manage_post_posts_columns' , 'lunarwp_remove_some_posts_listing_columns', 20, 1);
/**
 * Remove columns from Posts Listing
 *
 * Uncomment the columns you want to remove
 *
 * @since  1.0.0
 * 
 * @param array $columns  Post Listing Columns
 * @return  array 	  Returns the amended columns array
 */
function lunarwp_remove_some_posts_listing_columns($columns)
{
	//unset($columns['author']);
	//unset($columns['categories']);
	//unset($columns['comments']);
	//unset($columns['tags']);
	//unset($columns['date']);
	//unset($columns['wpseo-title']);
	unset($columns['wpseo-metadesc']);	
	unset($columns['wpseo-focuskw']);	
	return $columns;
}