fs: remove unnecessary bind

Don't use Function.prototype.bind where it isn't
necessary. Rely on event emitter context instead
and on arrow function as class property.
PR-URL: #28131
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

Author: apapirovski

lib/internal/fs/promises.js

@@ -116,7 +116,7 @@ class FileHandle {
 returnwriteFile(this,data,options);
 }
 
-close(){
+close=()=>{
 returnthis[kHandle].close();
 }
 }
@@ -411,7 +411,7 @@ async function lchmod(path, mode) {
 thrownewERR_METHOD_NOT_IMPLEMENTED('lchmod()');
 
 constfd=awaitopen(path,O_WRONLY|O_SYMLINK);
-returnfchmod(fd,mode).finally(fd.close.bind(fd));
+returnfchmod(fd,mode).finally(fd.close);
 }
 
 asyncfunctionlchown(path,uid,gid){
@@ -476,7 +476,7 @@ async function writeFile(path, data, options) {
 returnwriteFileHandle(path,data,options);
 
 constfd=awaitopen(path,flag,options.mode);
-returnwriteFileHandle(fd,data,options).finally(fd.close.bind(fd));
+returnwriteFileHandle(fd,data,options).finally(fd.close);
 }
 
 asyncfunctionappendFile(path,data,options){
@@ -494,7 +494,7 @@ async function readFile(path, options) {
 returnreadFileHandle(path,options);
 
 constfd=awaitopen(path,flag,0o666);
-returnreadFileHandle(fd,options).finally(fd.close.bind(fd));
+returnreadFileHandle(fd,options).finally(fd.close);
 }
 
 module.exports={

lib/internal/fs/streams.js

@@ -372,7 +372,7 @@ WriteStream.prototype.close = function(cb) {
 // If we are not autoClosing, we should call
 // destroy on 'finish'.
 if(!this.autoClose){
-this.on('finish',this.destroy.bind(this));
+this.on('finish',this.destroy);
 }
 
 // We use end() instead of destroy() because of