meta: Remove meta_free_gslist_and_elements

This function was added for historic reasons, before that we had GSlist's
free_full function.

Since this can be now easily implemented with a function call and an explicit
GDestroyFunc, while no known dependency uses it let's move to use
g_slist_free_func instead.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/57

src/core/util.c

@@ -241,17 +241,6 @@ utf8_fputs (const char *str,
   return retval;
 }
 
-/**
- * meta_free_gslist_and_elements: (skip)
- * @list_to_deep_free: list to deep free
- *
- */
-void
-meta_free_gslist_and_elements (GSList *list_to_deep_free)
-{
-  g_slist_free_full (list_to_deep_free, g_free);
-}
-
 #ifdef WITH_VERBOSE_MODE
 void
 meta_debug_spew_real (const char *format, ...)

src/core/window.c

@@ -1525,7 +1525,7 @@ meta_window_unmanage (MetaWindow  *window,
 
   if (window->struts)
     {
-      meta_free_gslist_and_elements (window->struts);
+      g_slist_free_full (window->struts, g_free);
       window->struts = NULL;
 
       meta_topic (META_DEBUG_WORKAREA,