Adwaita: drop references to render-borders.sh/borders.txt
Adwaita: drop references to render-borders.sh/borders.txt

They were dropped with 82b12328987425a2c7342e259c9147df3787bdb9

jadahl/gtk,jigpu/gtk,jigpu/gtk,Lyude/gtk-,jigpu/gtk,jadahl/gtk,ahodesuka/gtk,jessevdk/gtk,chergert/gtk,alexlarsson/gtk,jessevdk/gtk,alexlarsson/gtk,grubersjoe/adwaita,Lyude/gtk-,jigpu/gtk,grubersjoe/adwaita,davidgumberg/gtk,chergert/gtk,Lyude/gtk-,ahodesuka/gtk,davidgumberg/gtk,alexlarsson/gtk,jessevdk/gtk,davidgumberg/gtk,ahodesuka/gtk,grubersjoe/adwaita,jigpu/gtk,alexlarsson/gtk,davidgumberg/gtk,Lyude/gtk-,Adamovskiy/gtk,ahodesuka/gtk,jessevdk/gtk,alexlarsson/gtk,chergert/gtk,jigpu/gtk,ahodesuka/gtk,alexlarsson/gtk,grubersjoe/adwaita,Lyude/gtk-,jigpu/gtk,jadahl/gtk,jadahl/gtk,Adamovskiy/gtk,ahodesuka/gtk,chergert/gtk,Adamovskiy/gtk,chergert/gtk,chergert/gtk,davidgumberg/gtk,Adamovskiy/gtk,grubersjoe/adwaita,Lyude/gtk-,ahodesuka/gtk,jadahl/gtk,chergert/gtk,Lyude/gtk-,jessevdk/gtk,jadahl/gtk,jessevdk/gtk,jigpu/gtk,Adamovskiy/gtk,Lyude/gtk-,davidgumberg/gtk,jessevdk/gtk,alexlarsson/gtk,grubersjoe/adwaita,davidgumberg/gtk,davidgumberg/gtk,Adamovskiy/gtk,alexlarsson/gtk,grubersjoe/adwaita,grubersjoe/adwaita,jadahl/gtk,chergert/gtk,Adamovskiy/gtk,Adamovskiy/gtk,ahodesuka/gtk,jadahl/gtk