Remove code that was added to disable the views for udc-dev

`udc-dev` didn't have the CL that hid the message views when the feature flag is disabled.

This change is not needed in udc-qpr-dev

Bug: 236891644
Test: verified manually
  1. enable feature flag, see new messages
  2. disable feature flag, see old messages
  3. Enable layout bounds in developer options, and see that the views are not in the layout when feature flag is disabled
Change-Id: I9ce0fe29284cbeea8dbad13f74c27af987facf59