How to Hide SSL Insecure Content Fixer Admin Menus

function plt_hide_ssl_insecure_content_fixer_menus() {
	//Hide the "Tools → SSL Tests" menu.
	remove_submenu_page('tools.php', 'ssl-insecure-content-fixer-tests');
	//Hide the "Settings → SSL Insecure Content" menu.
	remove_submenu_page('options-general.php', 'ssl-insecure-content-fixer');
}

add_action('admin_menu', 'plt_hide_ssl_insecure_content_fixer_menus', 11);

Where do I put this code?