Remove TODO for animating bubble bar view

The animation is added and the linked bug is fixed.
Removing obsolete TODO.

Bug: 280605790
Change-Id: I54ab56f93794afb7f7c23de4df1a348d30cbbf42
Test: NA
Flag: DOCS_ONLY
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarView.java b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarView.java
index 9df0576..fab7975 100644
--- a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarView.java
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarView.java
@@ -801,7 +801,6 @@
                 listener);
     }
 
-    // TODO: (b/280605790) animate it
     @Override
     public void addView(View child, int index, ViewGroup.LayoutParams params) {
         super.addView(child, index, params);