[Android] Upstreaming notification channels part 2: Clean up

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

Index: chrome/android/java/src/org/chromium/chrome/browser/AppHooks.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/AppHooks.java b/chrome/android/java/src/org/chromium/chrome/browser/AppHooks.java
index b8f71672f6764accd22cd71e8ff3bb86bdb15435..c4d114bf9494e264602d549bfb0ea2670a149cb1 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/AppHooks.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/AppHooks.java
@@ -5,7 +5,6 @@
 package org.chromium.chrome.browser;
 
 import android.app.Notification;
-import android.content.Context;
 import android.content.Intent;
 import android.os.Handler;
 import android.os.Looper;
@@ -28,9 +27,6 @@ import org.chromium.chrome.browser.media.VideoPersister;
 import org.chromium.chrome.browser.metrics.VariationsSession;
 import org.chromium.chrome.browser.multiwindow.MultiWindowUtils;
 import org.chromium.chrome.browser.net.qualityprovider.ExternalEstimateProviderAndroid;
-import org.chromium.chrome.browser.notifications.ChromeNotificationBuilder;
-import org.chromium.chrome.browser.notifications.NotificationBuilder;
-import org.chromium.chrome.browser.notifications.NotificationCompatBuilder;
 import org.chromium.chrome.browser.omaha.RequestGenerator;
 import org.chromium.chrome.browser.physicalweb.PhysicalWebBleClient;
 import org.chromium.chrome.browser.policy.PolicyAuditor;
@@ -109,24 +105,6 @@ public abstract class AppHooks {
         return null;
     }
 
-    /**
-     * Creates either a Notification.Builder or NotificationCompat.Builder under the hood, wrapped
-     * in our own common interface. Should be used for all notifications we create.
-     *
-     * TODO(awdf) Remove this once we've updated to revision 26 of the support library.
-     *
-     * @param preferCompat if a NotificationCompat.Builder is preferred.
-     * @param notificationCategoryGroupId
-     * @param notificationCategoryGroupName
-     */
-    public ChromeNotificationBuilder createChromeNotificationBuilder(boolean preferCompat,
-            String notificationCategoryId, String notificationCategoryName,
-            String notificationCategoryGroupId, String notificationCategoryGroupName) {
-        Context context = ContextUtils.getApplicationContext();
-        return preferCompat ? new NotificationCompatBuilder(context)
-                            : new NotificationBuilder(context);
-    }
-
     /** Returns the singleton instance of ChromeShortcutManager */
     public ChromeShortcutManager createChromeShortcutManager() {
         return new ChromeShortcutManager();