bool silc_idcache_del_by_id_ext(SilcIDCache cache, void *id,
                                    SilcHashFunction hash,
                                    void *hash_context,
                                    SilcHashCompare compare,
                                    void *compare_context);

    Same as silc_idcache_del_by_id but with specific hash and comparison
    functions. If the functions are NULL then default values are used.
    Returns TRUE if the entry was deleted. The destructor function is
    called.