How to Hide WP Encryption - One Click SSL & Force HTTPS Admin Menus

function plt_hide_wp_letsencrypt_ssl_menus() {
	//Hide "WP Encryption".
	remove_menu_page('wp_encryption');
	//Hide "WP Encryption → WP Encryption".
	remove_submenu_page('wp_encryption', 'wp_encryption');
	//Hide "WP Encryption → SSL Health and Headers 10".
	remove_submenu_page('wp_encryption', 'wp_encryption_ssl_health');
	//Hide "WP Encryption → Vulnerability Scanner & Security".
	remove_submenu_page('wp_encryption', 'wp_encryption_security');
	//Hide "WP Encryption → Download SSL Certificates".
	remove_submenu_page('wp_encryption', 'wp_encryption_download');
	//Hide "WP Encryption → Force HTTPS".
	remove_submenu_page('wp_encryption', 'wp_encryption_force_https');
	//Hide "WP Encryption → Mixed Content Scanner".
	remove_submenu_page('wp_encryption', 'wp_encryption_mixed_scanner');
	//Hide "WP Encryption → RESET".
	remove_submenu_page('wp_encryption', 'wp_encryption_reset');
	//Hide "WP Encryption → Upgrade to Premium".
	remove_submenu_page('wp_encryption', 'https://wpencryption.com/?utm_source=wordpress&utm_medium=admin&utm_campaign=wpencryption#pricing');
	//Hide "WP Encryption → Add-Ons".
	remove_submenu_page('wp_encryption', 'wp_encryption-addons');
}

add_action('admin_menu', 'plt_hide_wp_letsencrypt_ssl_menus', 1000000000);

Where do I put this code?