[cleanup] Removed dead code from avatar selection screen.

chrome/browser/chromeos/login/screens/user_image_screen_actor.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_USER_IMAGE_SCREEN_ACTOR_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_USER_IMAGE_SCREEN_ACTOR_H_
 
 #include <string>
 
 class SkBitmap;
@@ skipping 50 matching lines @@
 
   // Selects image with the index specified.
   virtual void SelectImage(int index) = 0;
 
   // Sends profile image as a data URL to the page.
   virtual void SendProfileImage(const std::string& data_url) = 0;
 
   // Indicates that there is no custom profile image for the user.
   virtual void OnProfileImageAbsent() = 0;
 
-  // Enables or disables profile picture.
-  virtual void SetProfilePictureEnabled(bool enabled) = 0;
-
   // Sends result of camera check
   virtual void SetCameraPresent(bool enabled) = 0;
 
   // Hides curtain with spinner.
   virtual void HideCurtain() = 0;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_USER_IMAGE_SCREEN_ACTOR_H_