Re-remove experiment code for moduleStorage

The second iteration of the experiment is done, so this can once again be
removed. This patch reverts commit Ifa97d36d3.

Change-Id: If85b392d3e29de57316d32ba81c9b172bef758dd

diff --git a/resources/mediawiki/mediawiki.js b/resources/mediawiki/mediawiki.js
index 5623575..f3bb414 100644 (file)
--- a/resources/mediawiki/mediawiki.js
+++ b/resources/mediawiki/mediawiki.js
@@ -1815,38 +1815,6 @@ var mw = ( function ( $, undefined ) {
                                        // Cache hit stats
                                        stats: { hits: 0, misses: 0, expired: 0 },
 
-                                       // Experiment data
-                                       experiment: ( function () {
-                                               var start = ( new Date() ).getTime(), id = 0, seed = 0;
-
-                                               try {
-                                                       id = JSON.parse( localStorage.getItem( 'moduleStorageExperiment2' ) );
-                                                       if ( typeof id !== 'number' ) {
-                                                               id = Math.floor( Math.random() * Math.random() * 1e16 );
-                                                               localStorage.setItem( 'moduleStorageExperiment2', id );
-                                                       }
-                                                       seed = id % 2000;
-                                               } catch ( e ) {}
-
-                                               return {
-                                                       // Unique identifier for this browser. This allows us to group all
-                                                       // datapoints generated by a particular browser, which in turn allows us
-                                                       // to see how the initial load compares to subsequent page loads.
-                                                       id: id,
-
-                                                       // Group assignment may be 0 (not in experiment), 1 (control group), or 2
-                                                       // (experimental group). Browsers that don't implement all the prerequisite APIs
-                                                       // (JSON and Web Storage) are ineligible. Eligible browsers have a 0.1% chance
-                                                       // of being included in the experiment, in which case they are equally likely to
-                                                       // be assigned to either the experimental or control group.
-                                                       group: seed === 1 ? 1 : ( seed === 2 ? 2 : 0 ),
-
-                                                       // Assess module storage performance by measuring the time between this
-                                                       // reference point and the window load event.
-                                                       start: start
-                                               };
-                                       }() ),
-
                                        /**
                                         * Construct a JSON-serializable object representing the content of the store.
                                         * @return {Object} Module store contents.
@@ -1907,8 +1875,7 @@ var mw = ( function ( $, undefined ) {
                                                        return;
                                                }
 
-                                               if ( ( !mw.config.get( 'wgResourceLoaderStorageEnabled' ) && mw.loader.store.experiment.group !== 2 )
-                                                       || mw.config.get( 'debug' ) ) {
+                                               if ( !mw.config.get( 'wgResourceLoaderStorageEnabled' ) || mw.config.get( 'debug' ) ) {
                                                        // Disabled by configuration, or because debug mode is set
                                                        mw.loader.store.enabled = false;
                                                        return;