[tests] Fix the VBO interactive test
[tests] Fix the VBO interactive test

We need to fix the VBO premultiplication; we also do not need to
forcibly queue a redraw in an idle handler: the timeline and the
master clock will do that for us.

tardyp/clutter,ebassi/clutter,heysion/clutter-clone,kerrickstaley/clutter-vala,djdeath/clutter-android,djdeath/clutter-android,djdeath/clutter-multithreaded,heysion/clutter-clone,djdeath/clutter-android,nobled/clutter,tardyp/clutter,djdeath/clutter,jigpu/clutter,dlespiau/clutter,heysion/clutter-clone,collects/clutter,heysion/clutter-clone,ebassi/clutter,GNOME/clutter,jigpu/clutter,djdeath/clutter,djdeath/clutter-multithreaded,Distrotech/clutter,GNOME/clutter,spatulasnout/clutter,collects/clutter,djdeath/clutter,nobled/clutter,Distrotech/clutter,Distrotech/clutter,GNOME/clutter,nobled/clutter,Distrotech/clutter,spatulasnout/clutter,dlespiau/clutter,rkudiyarov/clutter_osx,jigpu/clutter,jigpu/clutter,ebassi/clutter,collects/clutter,djdeath/clutter-multithreaded,djdeath/clutter,jigpu/clutter,spatulasnout/clutter,jigpu/clutter,heysion/clutter-clone,Distrotech/clutter,rkudiyarov/clutter_osx,collects/clutter,GNOME/clutter,kerrickstaley/clutter-vala,tardyp/clutter,rkudiyarov/clutter_osx,spatulasnout/clutter,djdeath/clutter,dlespiau/clutter,collects/clutter,rkudiyarov/clutter_osx,GNOME/clutter,Distrotech/clutter,ebassi/clutter,kerrickstaley/clutter-vala,kerrickstaley/clutter-vala,djdeath/clutter-android,djdeath/clutter-android,djdeath/clutter-multithreaded,spatulasnout/clutter,djdeath/clutter,ebassi/clutter