dev_to_node() can handle the case when CONFIG_NUMA is not set, so the
check of CONFIG_NUMA is redundant and can be removed.
Signed-off-by: NYicong Yang <yangyicong@hisilicon.com>
Signed-off-by: NWeili Qian <qianweili@huawei.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>