Improve database performance by removing duplicated queries

app/Presenters/UserPresenter.php

@@ -12,6 +12,7 @@
 namespace CachetHQ\Cachet\Presenters;
 
 use Illuminate\Contracts\Support\Arrayable;
+use Illuminate\Support\Facades\Config;
 use Laravolt\Avatar\Facade as Avatar;
 use McCool\LaravelAutoPresenter\BasePresenter;
 
@@ -29,7 +30,7 @@ class UserPresenter extends BasePresenter implements Arrayable
      */
     public function avatar()
     {
-        if (setting('enable_external_dependencies')) {
+        if (Config::get('setting.enable_external_dependencies')) {
             return sprintf('https://www.gravatar.com/avatar/%s?size=%d', md5(strtolower($this->email)), 200);
         }