preparser: remove on_art_fetch_ended

Use on_preparse_ended instead (cf. previous commit).

include/vlc_preparser.h

@@ -70,7 +70,6 @@ enum input_item_preparse_status
 
 struct vlc_metadata_cbs {
     void (*on_preparse_ended)(input_item_t *, enum input_item_preparse_status status, void *userdata);
-    void (*on_art_fetch_ended)(input_item_t *, bool fetched, void *userdata);
     void (*on_subtree_added)(input_item_t *, input_item_node_t *subtree, void *userdata);
     void (*on_attachments_added)(input_item_t *item,
                                  input_attachment_t *const *array,

src/preparser/preparser.c

@@ -125,14 +125,10 @@ PreparserRemoveTask(vlc_preparser_t *preparser, struct task *task)
 static void
 NotifyPreparseEnded(struct task *task, bool art_fetched)
 {
+    (void) art_fetched;
     if (task->cbs == NULL)
         return;
 
-    if (task->options & META_REQUEST_OPTION_FETCH_ANY
-     && task->cbs->on_art_fetch_ended)
-        task->cbs->on_art_fetch_ended(task->item, art_fetched,
-                                      task->userdata);
-
     if (task->cbs->on_preparse_ended) {
         int status = atomic_load_explicit(&task->preparse_status,
                                           memory_order_relaxed);