Remove Edu notification if predictions are empty

Bug: 142753423
Test: Manual
Change-Id: I1111fa15b9b677bb077478309a185e70e6784bce
(cherry picked from commit ca1c32537c94872393ca2d2568c5a251c0246913)
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/hybridhotseat/HotseatEduController.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/hybridhotseat/HotseatEduController.java
index da58817..d68c3f5 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/hybridhotseat/HotseatEduController.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/hybridhotseat/HotseatEduController.java
@@ -238,6 +238,9 @@
                 && mLauncher.getOrientation() == Configuration.ORIENTATION_PORTRAIT) {
             mNotificationManager.notify(ONBOARDING_NOTIFICATION_ID, mNotification);
         }
+        else {
+            removeNotification();
+        }
     }
 
     private void createNotificationChannel() {