Printing: Remove unused PageOverlay since header/footers are drawn in PrintWebViewHelper.

printing/printed_document_posix.cc

Index: printing/printed_document_posix.cc
===================================================================
--- printing/printed_document_posix.cc	(revision 95638)
+++ printing/printed_document_posix.cc	(working copy)
@@ -1,21 +0,0 @@
-// Copyright (c) 2009 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.
-
-#include "printing/printed_document.h"
-
-#include "base/i18n/time_formatting.h"
-#include "base/time.h"
-#include "base/utf_string_conversions.h"
-
-using base::Time;
-
-namespace printing {
-
-void PrintedDocument::Immutable::SetDocumentDate() {
-  Time now = Time::Now();
-  date_ = base::TimeFormatShortDateNumeric(now);
-  time_ = base::TimeFormatTimeOfDay(now);
-}
-
-}  // namespace printing