[FS\FileSystem] - remove parameters duplication in use (PHP 7.1 compatibility) (#270)

Author: ovr

PHPDaemon/FS/FileSystem.php

@@ -532,7 +532,7 @@ public static function readfile($path, $cb, $pri = EIO_PRI_DEFAULT)
             $cb($path, file_get_contents($path));
             return true;
         }
-        return FileSystem::open($path, 'r!', function ($file) use ($path, $cb, $pri, $path) {
+        return FileSystem::open($path, 'r!', function ($file) use ($path, $cb, $pri) {
             if (!$file) {
                 $cb($path, false);
                 return;