RDMA/core: Remove 'device' argument from rdma_build_skb()

'device' argument is never used since rdma_build_skb()
is introduced, so remove it.

Link: https://lore.kernel.org/r/20220826143215.18111-1-linyunsheng@huawei.com


Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>