deactivate anything in wp_head

wp_functions.php

<?php
	// add theme support for
	add_theme_support('html5');
	add_theme_support('menus');
	add_theme_support('post-formats', array(
		'aside',
		'image',
		'link',
		'status'
	));
	add_theme_support('post-thumbnails', array(
		'page',
		'post'
	));
	add_theme_support('title-tag');

	// deactivate anything in wp_head
	remove_action('wp_head', 'adjacent_posts_rel_link_wp_head');
	remove_action('wp_head', 'feed_links');
	remove_action('wp_head', 'feed_links_extra');
	remove_action('wp_head', 'index_rel_link' );
	remove_action('wp_head', 'locale_stylesheet');
	remove_action('wp_head', 'noindex');
	remove_action('wp_head', 'parent_post_rel_link');
	remove_action('wp_head', 'print_emoji_detection_script', 7);
	remove_action('wp_head', 'rest_output_link_wp_head');
	remove_action('wp_head', 'rsd_link');
	remove_action('wp_head', 'start_post_rel_link');
	remove_action('wp_head', 'wlwmanifest_link');
	remove_action('wp_head', 'wp_generator');
	remove_action('wp_head', 'wp_oembed_add_discovery_links');
	remove_action('wp_head', 'wp_print_head_scripts');
	remove_action('wp_head', 'wp_print_styles');
	remove_action('wp_head', 'wp_shortlink_wp_head');

	// deactivate misc stuff
	remove_action('admin_print_scripts', 'print_emoji_detection_script');
	remove_action('admin_print_styles', 'print_emoji_styles');
	remove_filter('comment_text_rss', 'wp_staticize_emoji');
	remove_filter('the_content_feed', 'wp_staticize_emoji');
	remove_filter('wp_mail', 'wp_staticize_emoji_for_email');
	remove_action('wp_print_styles', 'print_emoji_styles');

	// deactivate filters
	add_filter('login_errors', '__return_false');
	add_filter('show_admin_bar','__return_false');
	add_filter('the_generator', '__return_false');
	add_filter('use_default_gallery_style', '__return_false');

	// deactivate cookies
	remove_action('set_comment_cookies', 'wp_set_comment_cookies');

	// register menus
	if (function_exists('register_nav_menus')) {
		register_nav_menus(
			array(
				'navigation'	=> 'navigation',
				'footer'		=> 'sub_navigation'
			)
		);
	}

	// favicons
	function favicons() {
		echo '
			<link rel="apple-touch-icon" sizes="57x57" href="' . get_bloginfo('template_url') . '/images/favicons/apple-touch-icon-57x57.png">
			<link rel="apple-touch-icon" sizes="60x60" href="' . get_bloginfo('template_url') . '/images/favicons/apple-touch-icon-60x60.png">
			<link rel="apple-touch-icon" sizes="72x72" href="' . get_bloginfo('template_url') . '/images/favicons/apple-touch-icon-72x72.png">
			<link rel="apple-touch-icon" sizes="76x76" href="' . get_bloginfo('template_url') . '/images/favicons/apple-touch-icon-76x76.png">
			<link rel="apple-touch-icon" sizes="114x114" href="' . get_bloginfo('template_url') . '/images/favicons/apple-touch-icon-114x114.png">
			<link rel="apple-touch-icon" sizes="120x120" href="' . get_bloginfo('template_url') . '/images/favicons/apple-touch-icon-120x120.png">
			<link rel="apple-touch-icon" sizes="144x144" href="' . get_bloginfo('template_url') . '/images/favicons/apple-touch-icon-144x144.png">
			<link rel="apple-touch-icon" sizes="152x152" href="' . get_bloginfo('template_url') . '/images/favicons/apple-touch-icon-152x152.png">
			<link rel="apple-touch-icon" sizes="180x180" href="' . get_bloginfo('template_url') . '/images/favicons/apple-touch-icon-180x180.png">
			<link rel="icon" type="image/png" href="' . get_bloginfo('template_url') . '/images/favicons/favicon-32x32.png" sizes="32x32">
			<link rel="icon" type="image/png" href="' . get_bloginfo('template_url') . '/images/favicons/favicon-194x194.png" sizes="194x194">
			<link rel="icon" type="image/png" href="' . get_bloginfo('template_url') . '/images/favicons/favicon-96x96.png" sizes="96x96">
			<link rel="icon" type="image/png" href="' . get_bloginfo('template_url') . '/images/favicons/android-chrome-192x192.png" sizes="192x192">
			<link rel="icon" type="image/png" href="' . get_bloginfo('template_url') . '/images/favicons/favicon-16x16.png" sizes="16x16">
			<link rel="manifest" href="' . get_bloginfo('template_url') . '/images/favicons/manifest.json">
			<link rel="shortcut icon" href="' . get_bloginfo('template_url') . '/images/favicons/favicon.ico">
			<meta name="msapplication-TileColor" content="#ffffff">
			<meta name="msapplication-TileImage" content="' . get_bloginfo('template_url') . '/images/favicons/mstile-144x144.png">
			<meta name="theme-color" content="#ffffff">
		';
	}
	add_action('wp_head', 'favicons');

	// remove the unsightly 'jump' from the read-more link
	if (!function_exists('remove_more_jump_link')) :
		function remove_more_jump_link($link) {
			$offset = strpos($link, '#more-');
			if ($offset) {
				$end = strpos($link, '"',$offset);
			}
			if ($end) {
				$link = substr_replace($link, '', $offset, $end-$offset);
			}
			return $link;
		}
		add_filter('the_content_more_link', 'remove_more_jump_link');
	endif;

	// import aqua image resizer
	require_once('lib/aq_resizer.php');
?>