cros: Remove unused method

chrome/browser/chromeos/login/screens/host_pairing_screen.cc

 // Copyright 2014 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/chromeos/login/screens/host_pairing_screen.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chromeos/login/startup_utils.h"
 #include "chrome/browser/chromeos/login/wizard_controller.h"
@@ skipping 29 matching lines @@
 
 void HostPairingScreen::CommitContextChanges() {
   if (!context_.HasChanges())
     return;
   base::DictionaryValue diff;
   context_.GetChangesAndReset(&diff);
   if (actor_)
     actor_->OnContextChanged(diff);
 }
 
-void HostPairingScreen::PrepareToShow() {
-}
-
 void HostPairingScreen::Show() {
   if (actor_)
     actor_->Show();
   PairingStageChanged(remora_controller_->GetCurrentStage());
 }
 
 void HostPairingScreen::Hide() {
   if (actor_)
     actor_->Hide();
 }
@@ skipping 138 matching lines @@
 }
 
 void HostPairingScreen::OnAnyEnrollmentError() {
   enrollment_helper_->ClearAuth(base::Bind(&HostPairingScreen::OnAuthCleared,
                                            weak_ptr_factory_.GetWeakPtr()));
   remora_controller_->OnEnrollmentStatusChanged(
       HostPairingController::ENROLLMENT_STATUS_FAILURE);
 }
 
 }  // namespace chromeos