Remove unused functions

Signed-off-by: Lukas Reschke <lukas@statuscode.ch>

lib/private/Files/Filesystem.php

@@ -646,14 +646,6 @@ class Filesystem {
 		return self::$defaultInstance->rmdir($path);
 	}
 
-	static public function opendir($path) {
-		return self::$defaultInstance->opendir($path);
-	}
-
-	static public function readdir($path) {
-		return self::$defaultInstance->readdir($path);
-	}
-
 	static public function is_dir($path) {
 		return self::$defaultInstance->is_dir($path);
 	}

lib/private/Files/View.php

@@ -366,15 +366,6 @@ class View {
 		return $this->basicOperation('opendir', $path, array('read'));
 	}
 
-	/**
-	 * @param $handle
-	 * @return mixed
-	 */
-	public function readdir($handle) {
-		$fsLocal = new Storage\Local(array('datadir' => '/'));
-		return $fsLocal->readdir($handle);
-	}
-
 	/**
 	 * @param string $path
 	 * @return bool|mixed