RDMA/hns: Remove unused parameters detected by -Wextra

driver inclusion
category: cleanup
bugzilla: https://gitee.com/openeuler/kernel/issues/I8LY0D



--------------------------------------------------------------------------

-Wextra will check the unused parameters. This patch removes these
unused parameters.

Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>