Remove all config files

def reset_config_files():
    """Remove all config files"""
    print("*** Reset Spyder settings to defaults ***", file=STDERR)
    for fname in SAVED_CONFIG_FILES:
        cfg_fname = get_conf_path(fname)
        if osp.isfile(cfg_fname) or osp.islink(cfg_fname):
            os.remove(cfg_fname)
        elif osp.isdir(cfg_fname):
            shutil.rmtree(cfg_fname)
        else:
            continue
        print("removing:", cfg_fname, file=STDERR)