cleanup: remove legacy code

app/Extensions/Facades/Theme.php

@@ -1,16 +0,0 @@
-<?php
-
-namespace Pterodactyl\Extensions\Facades;
-
-use Illuminate\Support\Facades\Facade;
-
-class Theme extends Facade
-{
-    /**
-     * @return string
-     */
-    protected static function getFacadeAccessor()
-    {
-        return 'extensions.themes';
-    }
-}

app/Extensions/Themes/Theme.php

@@ -1,21 +0,0 @@
-<?php
-
-namespace Pterodactyl\Extensions\Themes;
-
-class Theme
-{
-    public function js($path)
-    {
-        return sprintf('<script src="%s"></script>' . PHP_EOL, $this->getUrl($path));
-    }
-
-    public function css($path)
-    {
-        return sprintf('<link media="all" type="text/css" rel="stylesheet" href="%s"/>' . PHP_EOL, $this->getUrl($path));
-    }
-
-    protected function getUrl($path)
-    {
-        return '/themes/pterodactyl/' . ltrim($path, '/');
-    }
-}