RDMA/hns: Remove macros that are no longer used

These macros are no longer used, so remove them.

Link: https://lore.kernel.org/r/20211119140208.40416-9-liangwenpeng@huawei.com


Signed-off-by: Yixing Liu <liuyixing1@huawei.com>
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>