* doc/guix.texi (Desktop Services): Replace 'geoclue-service' with 'geoclue-service-type'.
* gnu/services/desktop.scm (<geoclue-configuration>): Set default values
based on the values from the now deprecated geoclue-service procedure.
(geoclue-service): Deprecate procedure.
(desktop-services-for-system): Use geoclue-service-type.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>