Remove feeds from head on theme level

Hello,

during cleaning up my functions.php I found out one curious thing:
In functions.php I have add_theme_support( 'automatic-feed-links' ); and few lines below I added big “cleaning blog”:

function itsme_disable_feed() {
	 wp_die( __( 'No feed available', 'madrid' ) );
	}

	add_action('do_feed', 'itsme_disable_feed', 1);
	add_action('do_feed_rdf', 'itsme_disable_feed', 1);
	add_action('do_feed_rss', 'itsme_disable_feed', 1);
	add_action('do_feed_rss2', 'itsme_disable_feed', 1);
	add_action('do_feed_atom', 'itsme_disable_feed', 1);
	add_action('do_feed_rss2_comments', 'itsme_disable_feed', 1);
	add_action('do_feed_atom_comments', 'itsme_disable_feed', 1);

	remove_action('wp_head', 'rsd_link');
	remove_action('wp_head', 'wp_generator');
	remove_action('wp_head', 'feed_links', 2);
	remove_action('wp_head', 'index_rel_link');
	remove_action('wp_head', 'wlwmanifest_link');
	remove_action('wp_head', 'feed_links_extra', 3);
	remove_action('wp_head', 'start_post_rel_link', 10, 0);
	remove_action('wp_head', 'parent_post_rel_link', 10, 0);
	remove_action('wp_head', 'adjacent_posts_rel_link', 10, 0);
	remove_action('wp_head', 'wp_shortlink_wp_head'); 
	remove_action('wp_head', 'rest_output_link_wp_head', 10 );
	remove_action('wp_head', 'wp_oembed_add_discovery_links', 10 );
	remove_action('wp_head', 'print_emoji_detection_script', 7 );
	remove_action('admin_print_scripts', 'print_emoji_detection_script' );
	remove_action('wp_print_styles', 'print_emoji_styles' );
	remove_action('admin_print_styles', 'print_emoji_styles' );
	remove_filter( 'wp_mail', 'wp_staticize_emoji_for_email' );
	remove_filter( 'the_content_feed', 'wp_staticize_emoji' );
	remove_filter( 'comment_text_rss', 'wp_staticize_emoji' );

	add_filter( 'emoji_svg_url', '__return_false' );
	add_filter( 'xmlrpc_enabled', '__return_false' );

	function fl_wp_footer_action() {
		wp_dequeue_script( 'wp-embed' );
	}
	add_action( 'wp_footer', 'fl_wp_footer_action', 9 );

	add_filter('the_generator', '__return_empty_string');
	
	add_filter( 'edit_post_link', '__return_false' );
 

Because I didnd found out any info what exactly add_theme_support( 'automatic-feed-links' ); is doing, Im curious if I remove add_theme_support( 'automatic-feed-links' ); what should I remove from my “cleaning blog” because of duplicity? Or there inst connection?

Thanks you