Remove deprecated function call in urlmarker demo
Remove deprecated function call in urlmarker demo

PabloCastellano/libchamplain,Distrotech/libchamplain,Distrotech/libchamplain,PabloCastellano/libchamplain,StanciuMarius/Libchamplain-map-wrapping,StanciuMarius/Libchamplain-map-wrapping,GNOME/libchamplain,PabloCastellano/libchamplain,GNOME/perl-Gtk2-Champlain,PabloCastellano/libchamplain,GNOME/libchamplain,GNOME/perl-Champlain,Distrotech/libchamplain,GNOME/perl-Champlain,GNOME/perl-Gtk2-Champlain,StanciuMarius/Libchamplain-map-wrapping,potyl/champlain,potyl/champlain,potyl/champlain,StanciuMarius/Libchamplain-map-wrapping,Distrotech/libchamplain,StanciuMarius/Libchamplain-map-wrapping,potyl/champlain,PabloCastellano/libchamplain,Distrotech/libchamplain