[pygobject] Revert "pygi-boxed: make in-place copy safer"

[Christoph Reiter <creiter src gnome org>]

commit 700c785367975995d24a8ffd00b2aa028ccf77e8
Author: Christoph Reiter <reiter christoph gmail com>
Date:   Tue Feb 13 23:26:15 2018 +0100

    Revert "pygi-boxed: make in-place copy safer"
    
    This reverts commit 9d96df1ea3ad533885fbcae4de693a3cd81e765a.

 gi/pygi-boxed.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)
---
diff --git a/gi/pygi-boxed.c b/gi/pygi-boxed.c
index 599d6d3e..fa690bb3 100644
--- a/gi/pygi-boxed.c
+++ b/gi/pygi-boxed.c
@@ -42,8 +42,6 @@ boxed_del (PyGIBoxed *self)
     if ( ( (PyGBoxed *) self)->free_on_dealloc && boxed != NULL) {
         if (self->slice_allocated) {
             g_slice_free1 (self->size, boxed);
-            self->slice_allocated = FALSE;
-            self->size = 0;
         } else {
             g_type = pyg_type_from_object ( (PyObject *) self);
             g_boxed_free (g_type, boxed);
@@ -205,11 +203,7 @@ void
 _pygi_boxed_copy_in_place (PyGIBoxed *self)
 {
     PyGBoxed *pygboxed = (PyGBoxed *)self;
-    gpointer ptr = pyg_boxed_get_ptr (self);
-    gpointer copy = NULL;
-
-    if (ptr)
-        copy = g_boxed_copy (pygboxed->gtype, ptr);
+    gpointer copy = g_boxed_copy (pygboxed->gtype, pyg_boxed_get_ptr (self));
 
     boxed_del (self);
     pyg_boxed_set_ptr (pygboxed, copy);