GtkIconTheme: Drop an unused variable
GtkIconTheme: Drop an unused variable

We no longer need a separate field for symbolic icon size,
now that we are using the directory size.

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