Revert "net: hns3: add suspend/resume function for hns3 driver"

driver inclusion
category: feature
bugzilla: NA
CVE: NA

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

This reverts commit 6c1eadb888e9e9c6593294c1e99038229ac55bb2.

HNS3 driver use pm_ops to implement the suspend/resume function,
so revert the old implementation.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Reviewed-by: li yongxin <liyongxin1@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>