What is the best way to delete the mixamo plug in rig whilst keeping the animation in blender?

[Sarper24793427hmj8]

I have been using mixamo plug in for some time now, and whilst exporting fbxs for unity I at at this point want to know how to delete the controllers the fks and iks leaving only the bones and baking the animation in blender.

Is there a simpler method than just manually deleting them all after baking? 

[Mikstyx]

I've just noticed that there's a lot of  Mixamo data in my PC user profile, taking up memory. I no longer use Mixamo, is it safe to delete all the cloths etc?