cleaning wp_head and wp_footer and security

functions.php

<?php
remove_action( 'wp_head', 'print_emoji_detection_script', 7 );
remove_action( 'wp_print_styles', 'print_emoji_styles' );
remove_action( 'wp_head', 'rest_output_link_wp_head', 10 );
remove_action ('wp_head', 'rsd_link');
remove_action ('wp_head', 'wlwmanifest_link');
remove_action ('wp_head', 'wp_generator');
remove_action( 'wp_head', 'wp_resource_hints', 2 );
function wps_deregister_styles() {
    wp_dequeue_style( 'global-styles' );
}
add_action( 'wp_enqueue_scripts', 'wps_deregister_styles', 100 );

?>