Port to GWeather4

In preparation for the GTK4 port. This is just a cheap port,
I'll implement proper entry completion after porting to GTK4.

src/weather/gcal-weather-service.c

@@ -665,7 +665,7 @@ static void
 update_gclue_location (GcalWeatherService  *self,
                        GClueLocation       *location)
 {
-  GWeatherLocation *wlocation = NULL; /* owned */
+  g_autoptr (GWeatherLocation) wlocation = NULL; /* owned */
 
   if (location)
     {
@@ -682,8 +682,6 @@ update_gclue_location (GcalWeatherService  *self,
     }
 
   update_location (self, wlocation);
-
-  g_clear_pointer (&wlocation, gweather_location_unref);
 }
 
 

src/weather/gcal-weather-service.h

@@ -20,8 +20,7 @@
 #define GCAL_WEATHER_SERVICE_H
 
 #include <libgweather/gweather.h>
-#include <glib-object.h>
-#include <glib.h>
+#include <gtk/gtk.h>
 
 #include "gcal-weather-info.h"