Revert MIG changes

[koooosh]

Issue number:

Related to: #4406

Description of changes:

Reverts MIG-related changes included in #4306:

• 4e8383e
• 0a36da3

Testing done:

N/A

Terms of contribution:

By submitting this pull request, I agree that this contribution is dual-licensed under the terms of both the Apache License, version 2.0, and the MIT license.

[piyush-jena]

I tested the changes with the latest kernel and core-kit and it works (customers can't set MIG settings and nvidia-migmanager.service won't run.)

root@admin]# sheltie
bash-5.1# journalctl -u nvidia-migmanager
Feb 18 23:16:55 ip-172-31-3-49.us-west-2.compute.internal systemd[1]: NVIDIA MIG manager service was skipped because of an unmet condition check (ConditionPathExists=/etc/nvidia-migmanager/nvidia-migmanager.toml).
Feb 18 23:16:56 ip-172-31-3-49.us-west-2.compute.internal systemd[1]: NVIDIA MIG manager service was skipped because of an unmet condition check (ConditionPathExists=/etc/nvidia-migmanager/nvidia-migmanager.toml).
bash-5.1# apiclient set settings.kubelet-device-plugins.nvidia.device-partitioning-strategy="mig"
Failed to change settings: Failed PATCH request to '/settings/keypair?tx=apiclient-set-xV2ypW3aat087Fem': Status 400 when PATCHing /settings/keypair?tx=apiclient-set-xV2ypW3aat087Fem: Unable to match your input to the data model.  We may not have enough type information.  Please try the --json input form.  Cause: Error during deserialization: unknown field `device-partitioning-strategy`, expected one of `pass-device-specs`, `device-id-strategy`, `device-list-strategy`, `device-sharing-strategy`, `time-slicing` at line 1 column 67
bash-5.1# apiclient apply <<EOF
> [settings.kubelet-device-plugins.nvidia.mig.profile]
> "a100.40gb"="3"
> "h100.80gb"="4"
> "g100.80gb"="1g.5gb"
> EOF
Failed to apply settings: Failed to PATCH settings from '-' to '/settings?tx=apiclient-apply-S5yboyYbXvJfGHWt': Status 400 when PATCHing /settings?tx=apiclient-apply-S5yboyYbXvJfGHWt: Json deserialize error: unknown field `mig`, expected one of `pass-device-specs`, `device-id-strategy`, `device-list-strategy`, `device-sharing-strategy`, `time-slicing` at line 1 column 42
bash-5.1#