Various code inspection items

- Fix class extension in Module\Admin\Item\Source
- Remove useless condition in Module\Admin\Features

src/Module/Admin/Features.php

@@ -5,7 +5,6 @@ namespace Friendica\Module\Admin;
 use Friendica\Content\Feature;
 use Friendica\Core\Config;
 use Friendica\Core\L10n;
-use Friendica\Core\Logger;
 use Friendica\Core\Renderer;
 use Friendica\Module\BaseAdminModule;
 
@@ -47,9 +46,6 @@ class Features extends BaseAdminModule
 	{
 		parent::content();
 
-		$a = self::getApp();
-
-		if (($a->argc > 1) && ($a->getArgumentValue(1) === 'features')) {
 		$arr = [];
 		$features = Feature::get(false);
 
@@ -76,4 +72,3 @@ class Features extends BaseAdminModule
 		return $o;
 	}
 }
-}

src/Module/Admin/Item/Source.php

@@ -5,20 +5,21 @@ namespace Friendica\Module\Admin\Item;
 use Friendica\Core\L10n;
 use Friendica\Core\Renderer;
 use Friendica\Model;
+use Friendica\Module\BaseAdminModule;
 
 /**
  * @author Hypolite Petovan <mrpetovan@gmail.com>
  */
-class Source extends \Friendica\BaseModule
+class Source extends BaseAdminModule
+
 {
 	public static function content()
 	{
-		if (!is_site_admin()) {
-			return;
-		}
+		parent::content();
 
 		$a = self::getApp();
 
+		$guid = null;
 		if (!empty($a->argv[1])) {
 			$guid = $a->argv[1];
 		}