Remove trash from wp_head

Remove trash from wp_head

// remove unncessary header info
function frq_remove_header_info() {
	remove_action('wp_head', 'rsd_link');
	remove_action('wp_head', 'wlwmanifest_link');
	remove_action('wp_head', 'wp_generator');
	remove_action('wp_head', 'start_post_rel_link');
	remove_action('wp_head', 'index_rel_link');
	remove_action('wp_head', 'adjacent_posts_rel_link');
}
add_action('init', 'frq_remove_header_info');