!1358 Remove DECnet support from kernel

Merge Pull Request from: @ci-robot 
 
PR sync from: Dong Chenchen <dongchenchen2@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/7VPFOSIEXGI6VKANM4UYHSTQS3WGKXAN/ 
 
 
Link:https://gitee.com/openeuler/kernel/pulls/1358

 

Reviewed-by: Yue Haibing <yuehaibing@huawei.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>