Ntp: use AMP urls for content suggestions when available.

chrome/browser/ui/webui/snippets_internals_message_handler.cc

Index: chrome/browser/ui/webui/snippets_internals_message_handler.cc
diff --git a/chrome/browser/ui/webui/snippets_internals_message_handler.cc b/chrome/browser/ui/webui/snippets_internals_message_handler.cc
index 4b78785ecf15c08b83b7a2af7511bd98ed9d5584..26353324d6f62949f2f9a31db2a697dd48cbc12c 100644
--- a/chrome/browser/ui/webui/snippets_internals_message_handler.cc
+++ b/chrome/browser/ui/webui/snippets_internals_message_handler.cc
@@ -48,7 +48,6 @@ std::unique_ptr<base::DictionaryValue> PrepareSuggestion(
   auto entry = base::MakeUnique<base::DictionaryValue>();
   entry->SetString("idWithinCategory", suggestion.id().id_within_category());
   entry->SetString("url", suggestion.url().spec());
-  entry->SetString("ampUrl", suggestion.amp_url().spec());
   entry->SetString("title", suggestion.title());
   entry->SetString("snippetText", suggestion.snippet_text());
   entry->SetString("publishDate",