test-flow-layout: Remove unneeded Stage sizing
test-flow-layout: Remove unneeded Stage sizing

The bug with resizable stages getting a 1, 1 window on X11 has been
fixed by Chris.

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