Removing listeners from FolderInfo

Folder and FolderIcon are UI objects and can talk to each other directly.
FolderInfo changes are already propogated via model callbacks, and doesn't need a separate listener pattern.

Bug: 398791288
Flag: EXEMPT bugfix
Test: atest FolderTest

Change-Id: Iefd47b8ea12a8ecaf34211a3d908220a0e999187

quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java

@@ -393,7 +393,6 @@ public class TaskbarViewController implements TaskbarControllers.LoggableTaskbar
         if (enableTaskbarPinning()) {
             mTaskbarView.removeOnLayoutChangeListener(mTaskbarViewLayoutChangeListener);
         }
-        mTaskbarView.removeFolderIconListeners();
         LauncherAppState.getInstance(mActivity).getModel().removeCallbacks(mModelCallbacks);
         mActivity.removeOnDeviceProfileChangeListener(mDeviceProfileChangeListener);
     }