Removing effects doesn't remove effects

[rockwalrus]

scene.removeAttribute('effects') doesn't cause the effects to stop. I can work around this through scene.setAttribute('effects', []).

[wizgrav]

The effects attribute is manipulating the system that supervises post proc and doesn't behave exactly like components currently. It also doesn't update when tweaked via the browser console inspector aframevr/aframe#2740 only setAttribute() works. For now work around it till its sorted out in aframe core