inspector: Avoid a gratitious use of g_strv_length
inspector: Avoid a gratitious use of g_strv_length

No need to count the strings first before iterating over them.

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