Controls UI - Marquee + transient status == no good

Temporary text was not given enough time to be visible, and could
cause confusion. Remove all temporary text in favor of leaving it
until the app decides to update, or the user takes another action.

Fixes: 159163559
Test: manual, controls mock + large font, touch on TYPE_TV
Change-Id: I6093c450e286cd1aac489847180877d78faa7ed3