don't send header() on CLI environment

Signed-off-by: Michael Kaufmann <d00p@froxlor.org>

logfiles_viewer.php

@@ -19,15 +19,13 @@ if (! defined('AREA')) {
  *         
  */
 
-use Froxlor\Api\Commands\SubDomains as SubDomains;
+use Froxlor\Api\Commands\SubDomains;
 use Froxlor\Settings;
 use Froxlor\UI\Request;
 
 // This file is being included in admin_domains and customer_domains
 // and therefore does not need to require lib/init.php
 
-// TODO get domain related settings for logfile (speciallogfile)
-
 $domain_id = (int) Request::get('domain_id');
 $last_n = (int) Request::get('number_of_lines', 100);