Revert 255617, due to it not tracking use of the link doctor page properly.

chrome/renderer/resources/neterror.js

Index: chrome/renderer/resources/neterror.js
===================================================================
--- chrome/renderer/resources/neterror.js	(revision 261404)
+++ chrome/renderer/resources/neterror.js	(working copy)
@@ -53,13 +53,6 @@
   classList['last_icon_class'] = newClass;
 }
 
-// Does a search using |baseSearchUrl| and the text in the search box.
-function search(baseSearchUrl) {
-  var searchTextNode = document.getElementById('search-box');
-  document.location = baseSearchUrl + searchTextNode.value;
-  return false;
-}
-
 <if expr="is_macosx or is_ios or is_linux or is_android">
 // Re-orders buttons. Used on Mac, Linux, and Android, where reload should go
 // on the right.