Don't unbundle updated notifications.

Bug: 28520827
Change-Id: I76593df3869a86353a1583e64e98b4aef04a7d1f

packages/ExtServices/src/android/ext/services/notification/Ranker.java

diff --git a/packages/ExtServices/src/android/ext/services/notification/Ranker.java b/packages/ExtServices/src/android/ext/services/notification/Ranker.java
index 3ef2aea..fefedf8 100644
--- a/packages/ExtServices/src/android/ext/services/notification/Ranker.java
+++ b/packages/ExtServices/src/android/ext/services/notification/Ranker.java
@@ -68,9 +68,7 @@
                     if (notificationsForPackage == null) {
                         notificationsForPackage = new LinkedHashSet<>();
                     }
-                    if (notificationsForPackage.contains(sbn.getKey())) {
-                        return;
-                    }
+
                     notificationsForPackage.add(sbn.getKey());
                     mUnbundledNotifications.put(sbn.getPackageName(), notificationsForPackage);