Revert of Various changes required to support ChromeVox Next to read Views and Windows.

chrome/common/extensions/api/_manifest_features.json

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This features file defines manifest keys implemented under src/chrome.
 // See extensions/common/features/* to understand this file, in particular
 // feature.h, simple_feature.h, and base_feature_provider.h.
 
 // To add a new whitelisted ID, SHA-1 it and force it to uppercase. In Bash:
 //
@@ skipping 16 matching lines @@
     "extension_types": ["legacy_packaged_app", "hosted_app"]
   },
   "app.launch": {
     "channel": "stable",
     "extension_types": ["legacy_packaged_app", "hosted_app"]
   },
   "author": {
     "channel": "stable",
     "extension_types": "all"
   },
-  "automation": [{
+  "automation": {
     "channel": "dev",
     "extension_types": ["extension", "legacy_packaged_app"]
-  }, {
-    "channel": "stable",
-    "extension_types": ["extension", "legacy_packaged_app"],
-    "whitelist": [ "2FCBCE08B34CCA1728A85F1EFBD9A34DD2558B2E" ]
-  }],
+  },
   "browser_action": {
     "channel": "stable",
     "extension_types": ["extension"]
   },
   "chrome_settings_overrides": {
     "channel": "stable",
     "extension_types": ["extension"],
     "platforms": ["win"]
   },
   "chrome_ui_overrides": [{
@@ skipping 228 matching lines @@
   },
   "update_url": {
     "channel": "stable",
     "extension_types": "all"
   },
   "url_handlers": {
     "channel": "stable",
     "extension_types": ["platform_app"]
   }
 }