Envoy by @iKilledAppl3

Envoy is a tweak by iKilledappl3 which adds a preferences pane settings in the Facebook messenger app, the new preferences lets you disable either or both of the “Active Now” and “Favorites” sections which Facebook added, from showing up in the app.

Personally I like this tweak as it removes the clutter that Facebook seems to think is an improvement and better yet Envoy is a free tweak and available from the main BigBoss repo here.