Remove Android Work Chrome code.

chrome/android/java/src/org/chromium/chrome/browser/ChromeVersionInfo.java

 // 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.
 
 package org.chromium.chrome.browser;
 
 /**
  * A utility class for querying information about the current Chrome build.
  * Intentionally doesn't depend on native so that the data can be accessed before
  * libchrome.so is loaded.
@@ skipping 29 matching lines @@
 
     /**
      * @return Whether this build is a stable build.
      */
     public static boolean isStableBuild() {
         return ChromeVersionConstants.CHANNEL == ChromeVersionConstants.CHANNEL_STABLE
                    ||  ChromeVersionConstants.CHANNEL == ChromeVersionConstants.CHANNEL_WORK;
     }
 
     /**
-     * @return Whether this build is a work build.
-     */
-    public static boolean isWorkBuild() {
-        return ChromeVersionConstants.CHANNEL == ChromeVersionConstants.CHANNEL_WORK;
-    }
-
-    /**
      * @return Whether this is an official (i.e. Google Chrome) build.
      */
     public static boolean isOfficialBuild() {
         return ChromeVersionConstants.IS_OFFICIAL_BUILD;
     }
 
     /**
      * @return The version number.
      */
     public static String getProductVersion() {
         return ChromeVersionConstants.PRODUCT_VERSION;
     }
 }