fs: remove unnecessary handle type checking

Author: pd4d10

lib/internal/fs/promises.js

@@ -266,10 +266,6 @@ async function handleFdClose(fileOpPromise, closeFunc) {
 }
 
 async function fsCall(fn, handle, ...args) {
-  if (handle[kRefs] === undefined) {
-    throw new ERR_INVALID_ARG_TYPE('filehandle', 'FileHandle', handle);
-  }
-
   if (handle.fd === -1) {
     // eslint-disable-next-line no-restricted-syntax
     const err = new Error('file closed');