menu: don't call gtk_style_context_set_background()
menu: don't call gtk_style_context_set_background()

davidgumberg/gtk,grubersjoe/adwaita,Adamovskiy/gtk,grubersjoe/adwaita,Adamovskiy/gtk,jadahl/gtk,jadahl/gtk,jigpu/gtk,jadahl/gtk,chergert/gtk,jigpu/gtk,chergert/gtk,chergert/gtk,jadahl/gtk,jigpu/gtk,alexlarsson/gtk,Adamovskiy/gtk,jigpu/gtk,Adamovskiy/gtk,jadahl/gtk,grubersjoe/adwaita,davidgumberg/gtk,chergert/gtk,grubersjoe/adwaita,alexlarsson/gtk,davidgumberg/gtk,davidgumberg/gtk,alexlarsson/gtk,Adamovskiy/gtk,jadahl/gtk,davidgumberg/gtk,Adamovskiy/gtk,chergert/gtk,Adamovskiy/gtk,jadahl/gtk,alexlarsson/gtk,chergert/gtk,jigpu/gtk,alexlarsson/gtk,alexlarsson/gtk,jigpu/gtk,Adamovskiy/gtk,grubersjoe/adwaita,davidgumberg/gtk,davidgumberg/gtk,grubersjoe/adwaita,davidgumberg/gtk,chergert/gtk,jigpu/gtk,alexlarsson/gtk,jigpu/gtk,jadahl/gtk,chergert/gtk,grubersjoe/adwaita,grubersjoe/adwaita,alexlarsson/gtk