l10n: Update POTFILES.in
l10n: Update POTFILES.in

Remove file no longer using translated strings, from POTFILES.in.

https://bugzilla.gnome.org/show_bug.cgi?id=725591

mlundblad/geocode-glib,Distrotech/geocode-glib,mlundblad/geocode-glib,mlundblad/geocode-glib,Distrotech/geocode-glib