benchmark: remove forced optimization from url

This removes all instances of %OptimizeFunctionOnNextCall from url
benchmarks

PR-URL: #9615
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

benchmark/url/url-format.js

@@ -1,7 +1,6 @@
 'use strict';
 const common = require('../common.js');
 const url = require('url');
-const v8 = require('v8');
 
 const inputs = {
   slashes: {slashes: true, host: 'localhost'},
@@ -24,9 +23,6 @@ function main(conf) {
   for (const name in inputs)
     url.format(inputs[name]);
 
-  v8.setFlagsFromString('--allow_natives_syntax');
-  eval('%OptimizeFunctionOnNextCall(url.format)');
-
   bench.start();
   for (var i = 0; i < n; i += 1)
     url.format(input);

benchmark/url/url-resolve.js

@@ -1,7 +1,6 @@
 'use strict';
 const common = require('../common.js');
 const url = require('url');
-const v8 = require('v8');
 const hrefs = require('../fixtures/url-inputs.js').urls;
 hrefs.noscheme = 'some.ran/dom/url.thing?oh=yes#whoo';
 
@@ -24,12 +23,6 @@ function main(conf) {
   const href = hrefs[conf.href];
   const path = paths[conf.path];
 
-  // Force-optimize url.resolve() so that the benchmark doesn't get
-  // disrupted by the optimizer kicking in halfway through.
-  url.resolve(href, path);
-  v8.setFlagsFromString('--allow_natives_syntax');
-  eval('%OptimizeFunctionOnNextCall(url.resolve)');
-
   bench.start();
   for (var i = 0; i < n; i += 1)
     url.resolve(href, path);