libceph: remove unnecessary non NULL check for request_key

request_key never return NULL,so no need do non-NULL check.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
1 file changed