Ramaxel inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4P01N
CVE: NA

Remove the code of polling mode
since the driver only use interrupt mode and not use poll mode.
Signed-off-by: NYanling Song <songyl@ramaxel.com>
Reviewed-by: NYang Gan <yanggan@ramaxel.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>