Update fs.js

Author: NoahDragon

lib/fs.js

@@ -715,7 +715,6 @@ exports.ReadStream = fs.ReadStream;
 exports.WriteStream = fs.WriteStream;
 exports.FileReadStream = fs.FileReadStream;
 exports.FileWriteStream = fs.FileWriteStream;
-exports.SyncWriteStream = fs.SyncWriteStream;
 
 // util
 exports.escapeBOM = escapeBOM;