Revert of DevTools: launch What's New from experiments

third_party/WebKit/Source/devtools/front_end/main/Main.js

Index: third_party/WebKit/Source/devtools/front_end/main/Main.js
diff --git a/third_party/WebKit/Source/devtools/front_end/main/Main.js b/third_party/WebKit/Source/devtools/front_end/main/Main.js
index 69731ce65ec9a9f9f32c48291011a26e16c02377..677d0e14ffd2bf34406104abf086d4747c6c4555 100644
--- a/third_party/WebKit/Source/devtools/front_end/main/Main.js
+++ b/third_party/WebKit/Source/devtools/front_end/main/Main.js
@@ -107,6 +107,7 @@
     Runtime.experiments.register('objectPreviews', 'Object previews', true);
     Runtime.experiments.register('persistence2', 'Persistence 2.0');
     Runtime.experiments.register('persistenceValidation', 'Validate persistence bindings');
+    Runtime.experiments.register('releaseNote', 'Release note', true);
     Runtime.experiments.register('requestBlocking', 'Request blocking', true);
     Runtime.experiments.register('timelineShowAllEvents', 'Show all events on Timeline', true);
     Runtime.experiments.register('timelineShowAllProcesses', 'Show all processes on Timeline', true);
@@ -131,6 +132,8 @@
         Runtime.experiments.enableForTest('cssTrackerPanel');
       if (testPath.indexOf('audits2/') !== -1)
         Runtime.experiments.enableForTest('audits2');
+      if (testPath.indexOf('help/') !== -1)
+        Runtime.experiments.enableForTest('releaseNote');
     }
 
     Runtime.experiments.setDefaultExperiments(['persistenceValidation']);
@@ -740,7 +743,8 @@
 
     var helpSubMenu = contextMenu.namedSubMenu('mainMenuHelp');
     helpSubMenu.appendAction('settings.documentation');
-    helpSubMenu.appendItem('Release Notes', () => InspectorFrontendHost.openInNewTab(Help.latestReleaseNote().link));
+    if (Runtime.experiments.isEnabled('releaseNote'))
+      helpSubMenu.appendItem('Release Notes', () => InspectorFrontendHost.openInNewTab(Help.latestReleaseNote().link));
     contextMenu.show();
   }
 };