[bootstrapper] Remove Intl experimental natives files

src/js/prologue.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(global, utils, extrasUtils) {
 
 "use strict";
 
 %CheckIsBootstrapping();
 
@@ skipping 183 matching lines @@
     filtered_exports[key] = exports_container[key];
   }
   %ToFastProperties(filtered_exports);
   exports_container = filtered_exports;
 
   utils.PostNatives = UNDEFINED;
   utils.ImportFromExperimental = UNDEFINED;
 }
 
 
 function PostExperimentals(utils) {

[Yang, 2017/02/15 12:40:15]

We should figure out a way to not run this function anymore from the
bootstrapper if no experimental script has run.

[Dan Ehrenberg, 2017/02/15 16:43:27]

Rather than doing that, I was thinking of just getting rid of the final
remaining experimental script (part of SharedArrayBuffer) in a follow-on patch,
as you were suggesting. Then, we can just delete this code entirely.

   %CheckIsBootstrapping();
-  %ExportExperimentalFromRuntime(exports_container);
   for ( ; !IS_UNDEFINED(imports); imports = imports.next) {
     imports(exports_container);
   }
   for ( ; !IS_UNDEFINED(imports_from_experimental);
           imports_from_experimental = imports_from_experimental.next) {
     imports_from_experimental(exports_container);
   }
 
   utils.Export = UNDEFINED;
   utils.PostDebug = UNDEFINED;
@@ skipping 95 matching lines @@
   %promise_internal_reject(promise, reason, true);
 }
 
 extrasUtils.markPromiseAsHandled = function markPromiseAsHandled(promise) {
   %PromiseMarkAsHandled(promise);
 };
 
 %ToFastProperties(extrasUtils);
 
 })