[chore] do we need to delete `/etc/containerd/` when do clean ops

[kakaZhou719]

Bug Report

Type: bug report

What happened

sealer delete -a , but those containerd files is not deleted .

What you expected to happen

How to reproduce it (as minimally and precisely as possible)

Anything else we need to know?

Environment

• ACK Distro version:
• OS (e.g. cat /etc/os-release):
• Kernel (e.g. uname -a):
• Others:

[VinceCui]

u are right.