Revert of [es6] Bound function names (patchset #1 id:1 of...

Revert of [es6] Bound function names (patchset #1 id:1 of https://codereview.chromium.org/1195983002/)

Reason for revert:
Incorrect behavior

Original issue's description:
> [es6] Bound function names
>
> https://people.mozilla.org/~jorendorff/es6-draft.html#sec-function.prototype.bind
>
> Bound functions should have a name based on the function that was
> bound.
>
> This reverts the revert f2747ed9. The original
> CL was reverted because the Blink layout test broke. I have a CL that disables
> these tests at: https://codereview.chromium.org/1196753003/
>
> BUG=N
> LOG=N
> R=adamk
> CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
>
> Committed: https://crrev.com/b6d950c979f4348138de0ec54e40dcc48d833926
> Cr-Commit-Position: refs/heads/master@{#29193}

TBR=adamk@chromium.org,verwaest@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=N

Review URL: https://codereview.chromium.org/1225793002

Cr-Commit-Position: refs/heads/master@{#29495}

src/v8natives.js

@@ -21,7 +21,6 @@ var GlobalFunction = global.Function;
 var GlobalNumber = global.Number;
 var GlobalObject = global.Object;
 var InternalArray = utils.InternalArray;
-var SetFunctionName = utils.SetFunctionName;
 
 var MathAbs;
 var ProxyDelegateCallAndConstruct;
@@ -1703,10 +1702,6 @@ function FunctionBind(this_arg) { // Length is 1.
   var result = %FunctionBindArguments(boundFunction, this,
                                       this_arg, new_length);
 
-  var name = this.name;
-  var bound_name = IS_STRING(name) ? name : "";
-  SetFunctionName(result, bound_name, "bound");
-
   // We already have caller and arguments properties on functions,
   // which are non-configurable. It therefore makes no sence to
   // try to redefine these as defined by the spec. The spec says

test/mjsunit/function-bind-name.js

-// Copyright 2015 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-function f() {}
-var fb = f.bind({});
-assertEquals('bound f', fb.name);
-assertEquals('function bound f() { [native code] }', fb.toString());
-
-Object.defineProperty(f, 'name', {value: 42});
-var fb2 = f.bind({});
-assertEquals('bound ', fb2.name);
-assertEquals('function bound () { [native code] }', fb2.toString());