placesviewrow: remove unneeded functions
placesviewrow: remove unneeded functions

These function declarations are not used nor implemented
anywhere, so remove them.

grubersjoe/adwaita,grubersjoe/adwaita,grubersjoe/adwaita,grubersjoe/adwaita,grubersjoe/adwaita,grubersjoe/adwaita,grubersjoe/adwaita,grubersjoe/adwaita