Remove used AndroidEduOwnerCheckCallback.

BUG=1044616

Change-Id: I4d47b2430379626beab226c7c7d0f2e68cf53033
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2284388Reviewed-by: Boris Sazonov <bsazonov@chromium.org>
Commit-Queue: Ted Choc <tedchoc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#786185}

chrome/android/chrome_java_sources.gni

@@ -1370,7 +1370,6 @@ chrome_java_sources = [
   "java/src/org/chromium/chrome/browser/send_tab_to_self/TargetDeviceInfo.java",
   "java/src/org/chromium/chrome/browser/services/AccountsChangedReceiver.java",
   "java/src/org/chromium/chrome/browser/services/AndroidChildAccountHelper.java",
-  "java/src/org/chromium/chrome/browser/services/AndroidEduOwnerCheckCallback.java",
   "java/src/org/chromium/chrome/browser/services/GoogleServicesManager.java",
   "java/src/org/chromium/chrome/browser/services/gcm/ChromeGcmListenerService.java",
   "java/src/org/chromium/chrome/browser/services/gcm/GCMBackgroundService.java",

chrome/android/java/src/org/chromium/chrome/browser/services/AndroidEduOwnerCheckCallback.java

-// Copyright 2015 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.services;
-
-/**
- * Callback used to get the result of the Android EDU ownership check.
- */
-public interface AndroidEduOwnerCheckCallback {
-    /**
-     * Indicates whether this is an Android EDU device or not.
-     */
-    public void onSchoolCheckDone(boolean isAndroidEduDevice);
-}