Eliminate the LinkInfoBar[Delegate] classes entirely.

chrome/browser/api/infobars/link_infobar_delegate.cc

Index: chrome/browser/api/infobars/link_infobar_delegate.cc
diff --git a/chrome/browser/api/infobars/link_infobar_delegate.cc b/chrome/browser/api/infobars/link_infobar_delegate.cc
deleted file mode 100644
index e353bdcf1ecfc901e1a7dee6c3e12c1cd5062f93..0000000000000000000000000000000000000000
--- a/chrome/browser/api/infobars/link_infobar_delegate.cc
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) 2011 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 "chrome/browser/api/infobars/link_infobar_delegate.h"
-
-bool LinkInfoBarDelegate::LinkClicked(WindowOpenDisposition disposition) {
-  return true;
-}
-
-LinkInfoBarDelegate::LinkInfoBarDelegate(InfoBarService* infobar_service)
-    : InfoBarDelegate(infobar_service) {
-}
-
-LinkInfoBarDelegate::~LinkInfoBarDelegate() {
-}
-
-LinkInfoBarDelegate* LinkInfoBarDelegate::AsLinkInfoBarDelegate() {
-  return this;
-}