Do not try to delete wait_for_media_premiere tasks

If the media is missing, then it will remove itself when it eventually executes.

This task is mostly informational anyway.

tubesync/sync/signals.py

@@ -381,7 +381,6 @@ def media_pre_delete(sender, instance, **kwargs):
     log.info(f'Deleting tasks for media: {instance.name}')
     delete_task_by_media('sync.tasks.download_media', (str(instance.pk),))
     delete_task_by_media('sync.tasks.download_media_metadata', (str(instance.pk),))
-    delete_task_by_media('sync.tasks.wait_for_media_premiere', (str(instance.pk),))
     thumbnail_url = instance.thumbnail
     if thumbnail_url:
         delete_task_by_media(