Removed lesser-used middleware and updated localization middleware

So that DB/User access is not explicitly enforced.
Same for GlobalViewData middleware although that was also just doubling
up on ways to access user/auth info.
Also cleaned up Localization Middleware doc blocks.

app/Http/Controllers/HomeController.php

@@ -110,15 +110,16 @@ class HomeController extends Controller
 
     /**
      * Show the view for /robots.txt
-     * @return $this
      */
     public function getRobots()
     {
         $sitePublic = setting('app-public', false);
         $allowRobots = config('app.allow_robots');
+
         if ($allowRobots === null) {
             $allowRobots = $sitePublic;
         }
+
         return response()
             ->view('common.robots', ['allowRobots' => $allowRobots])
             ->header('Content-Type', 'text/plain');