Move twig template cache

inc/cache.php

@@ -165,31 +165,3 @@ class Cache {
 		return false;
 	}
 }
-
-class Twig_Cache_TinyboardFilesystem extends Twig\Cache\FilesystemCache
-{
-	private $directory;
-	private $options;
-
-	/**
-	 * {@inheritdoc}
-	 */
-	public function __construct($directory, $options = 0)
-	{
-		parent::__construct($directory, $options);
-
-		$this->directory = $directory;
-	}
-
-	/**
-	 * This function was removed in Twig 2.x due to developer views on the Twig library. Who says we can't keep it for ourselves though?
-	 */
-	public function clear()
-	{
-		foreach (new RecursiveIteratorIterator(new RecursiveDirectoryIterator($this->directory), RecursiveIteratorIterator::LEAVES_ONLY) as $file) {
-			if ($file->isFile()) {
-				@unlink($file->getPathname());
-			}
-		}
-	}
-}