fixed 84e547ed from https://gitee.com/zhuhongtao66/docs/pulls/20035

fileio_add_deprecated
Signed-off-by: N18721213663 <zhuhongtao12@huawei.com>

zh-cn/application-dev/reference/apis/js-apis-file-fs.md

@@ -280,7 +280,6 @@ close(file: number|File): Promise<void>
   let file = fs.openSync(filePath);
   fs.close(file).then(() => {
       console.info("close file succeed");
-      fs.closeSync(file);
   }).catch((err) => {
       console.info("close file failed with error message: " + err.message + ", error code: " + err.code);
   });