remove ssh keys

[guptaNswati]

This is to remove the ssh keys generated in post install of openssh-server. The keys are not needed as mpi-operator handles this automatically by mounting keys in a secret.

Mounts:
      /home/mpiuser/.ssh from ssh-auth (rw)
Volumes:
  ssh-auth:
    Type:        Secret (a volume populated by a Secret)
    SecretName:  nvbandwidth-test-ssh
    
mpiuser@nvbandwidth-test-worker-0:~$ ls -al /home/mpiuser/ 
total 36
drwxr-x--- 1 mpiuser mpiuser 4096 Oct  7 21:45 .
drwxr-xr-x 1 root    root    4096 Oct  6 20:50 ..
-rw-r--r-- 1 mpiuser mpiuser  220 Jan  6  2022 .bash_logout
-rw-r--r-- 1 mpiuser mpiuser 3771 Jan  6  2022 .bashrc
drwx------ 3 mpiuser mpiuser 4096 Oct  7 21:45 .nv
-rw-r--r-- 1 mpiuser mpiuser  807 Jan  6  2022 .profile
drwxrwxrwt 3 root    root     140 Oct  7 21:45 .ssh
-rw-rw-r-- 1 mpiuser mpiuser   90 Oct  6 20:50 .sshd_config
-rw-r--r-- 1 mpiuser mpiuser    2 Oct  7 21:45 sshd.pid
mpiuser@nvbandwidth-test-worker-0:~$ ls -al /home/mpiuser/.ssh
total 4
drwxrwxrwt 3 root    root     140 Oct  7 21:45 .
drwxr-x--- 1 mpiuser mpiuser 4096 Oct  7 21:45 ..
drwxr-xr-x 2 root    root     100 Oct  7 21:45 ..2025_10_07_21_45_50.4072569291
lrwxrwxrwx 1 root    root      32 Oct  7 21:45 ..data -> ..2025_10_07_21_45_50.4072569291
lrwxrwxrwx 1 root    root      22 Oct  7 21:45 authorized_keys -> ..data/authorized_keys
lrwxrwxrwx 1 root    root      13 Oct  7 21:45 id_rsa -> ..data/id_rsa
lrwxrwxrwx 1 root    root      17 Oct  7 21:45 id_rsa.pub -> ..data/id_rsa.pub

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