Remove unused var.

BUG=None
Test=None, Cleanup.

Review URL: https://codereview.chromium.org/54303009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233381 0039d316-1c4b-4281-b951-d872f2087c98

chrome/renderer/resources/extensions/web_view_experimental.js

@@ -13,9 +13,6 @@
 
 var CreateEvent = require('webView').CreateEvent;
 var MessagingNatives = requireNative('messaging_natives');
-var WebRequestEvent = require('webRequestInternal').WebRequestEvent;
-var WebRequestSchema =
-    requireNative('schema_registry').GetSchema('webRequest');
 var WebViewInternal = require('webView').WebViewInternal;
 var WebView = require('webView').WebView;