[pygobject] Make pygobject_prepare_construct_properties() static

[Christoph Reiter <creiter src gnome org>]

commit f3a2f0646cb5b7cf14f1c951b093e29cc758694f
Author: Christoph Reiter <reiter christoph gmail com>
Date:   Fri Oct 4 14:43:28 2019 +0200

    Make pygobject_prepare_construct_properties() static
    
    It's not used anywhere else atm

 gi/pygobject-object.c | 2 +-
 gi/pygobject-object.h | 4 ----
 2 files changed, 1 insertion(+), 5 deletions(-)
---
diff --git a/gi/pygobject-object.c b/gi/pygobject-object.c
index bf969953..8e1437bd 100644
--- a/gi/pygobject-object.c
+++ b/gi/pygobject-object.c
@@ -1256,7 +1256,7 @@ pygobject_free(PyObject *op)
     PyObject_GC_Del(op);
 }
 
-gboolean
+static gboolean
 pygobject_prepare_construct_properties(GObjectClass *class, PyObject *kwargs,
                                        guint *n_params, GParameter **params)
 {
diff --git a/gi/pygobject-object.h b/gi/pygobject-object.h
index 6658244a..580939a2 100644
--- a/gi/pygobject-object.h
+++ b/gi/pygobject-object.h
@@ -33,10 +33,6 @@ pyg_object_peek_inst_data(GObject *obj)
             g_object_get_qdata(obj, pygobject_instance_data_key));
 }
 
-gboolean      pygobject_prepare_construct_properties  (GObjectClass *class,
-                                                       PyObject *kwargs,
-                                                       guint *n_params,
-                                                       GParameter **params);
 void          pygobject_register_class   (PyObject *dict,
                                           const gchar *type_name,
                                           GType gtype, PyTypeObject *type,