nit: Remove old comment

Co-authored-by: Yagiz Nizipli <yagiz@nizipli.com>

Author: ChALkeR

lib/fs.js

@@ -2381,7 +2381,7 @@ function writeFileSync(path, data, options) {
   validateBoolean(flush, 'options.flush');
 
   const flag = options.flag || 'w';
-  const isUserFd = isFd(path); // File descriptor ownership
+  const isUserFd = isFd(path);
 
   // C++ fast path for string data and UTF8 encoding
   if (