Add button to fetch current IP address

src/application.vala

@@ -60,15 +60,6 @@ public class Allesapp.Application : Adw.Application {
 
     private void on_preferences_action () {
         message ("app.preferences action activated");
-
-        var session = new Soup.Session ();
-        var msg = new Soup.Message ("GET", "http://ip4.clerie.de");
-
-        var input_stream = session.send (msg);
-        var data_input_stream = new DataInputStream (input_stream);
-
-        message (data_input_stream.read_line_utf8());
-
     }
 
 }