Fixed a bug where a notification was incorrectly marked as removed

When unauto-bundled, it could lead to serious bugs on the lockscreen
and the header not being restored.

Change-Id: I2d6310a2bcb2f3a60402db5f1e522954f8bd0389
Fixes: 29463339

packages/SystemUI/src/com/android/systemui/statusbar/ExpandableNotificationRow.java

@@ -761,9 +761,6 @@ public class ExpandableNotificationRow extends ActivatableNotificationView {
         mRemoved = true;
 
         mPrivateLayout.setRemoved();
-        if (mChildrenContainer != null) {
-            mChildrenContainer.setRemoved();
-        }
     }
 
     public NotificationChildrenContainer getChildrenContainer() {

packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationChildrenContainer.java

@@ -856,14 +856,6 @@ public class NotificationChildrenContainer extends ViewGroup {
                 mNotificationParent.getNotificationColor());
     }
 
-    public void setRemoved() {
-        int childCount = mChildren.size();
-        for (int i = 0; i < childCount; i++) {
-            ExpandableNotificationRow child = mChildren.get(i);
-            child.setRemoved();
-        }
-    }
-
     public int getPositionInLinearLayout(View childInGroup) {
         int position = mNotificationHeaderMargin + mNotificatonTopPadding;