Cleanup unreachable cert adding code

chrome/browser/ssl/ssl_add_certificate_android.cc

-// Copyright (c) 2012 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/ssl/ssl_add_certificate.h"
-
-#include <stddef.h>
-
-#include "net/android/network_library.h"
-
-namespace chrome {
-
-// Special case for Android here for several reasons:
-//
-// - The SSLAddCertHandler implementation currently only supports
-//   CERTIFICATE_TYPE_X509_USER_CERT, but not other types, like
-//   CERTIFICATE_TYPE_PKCS12_ARCHIVE which are required on this
-//   platform.
-//
-// - Besides, SSLAddCertHandler tries to parse the certificate
-//   by calling net::CertDatabase::CheckUserCert() which is not
-//   implemented on Android, mainly because there is no API
-//   provided by the system to do that properly.
-//
-// - The Android CertInstaller activity will check the certificate file
-//   and display a toast (small fading dialog) to the user if it is
-//   not valid, so the UI performed by SSLAddCertHandler would
-//   be redundant.
-void SSLAddCertificate(
-    net::CertificateMimeType cert_type,
-    const void* cert_data,
-    size_t cert_size,
-    int /* render_process_id */,
-    int /* render_view_id */) {
-  if (cert_size > 0) {
-    // This launches a new activity which will run in a different process.
-    // It handles all user interaction, so no need to do anything in the
-    // browser UI thread here.
-    net::android::StoreCertificate(cert_type, cert_data, cert_size);
-  }
-}
-
-}  //  namespace chrome