Podman: Correct Quadlet install mechanism

[ChrSteinert]

Quadlet services do not support enabling by systemd enable. Remove the wrong section and replace it with hint about the generator procedure.

Author checklist (Completed by original Author)

• Good fit for the Rocky Linux project? Title and Author Metatags inserted ?
• If applicable, steps and instructions have been tested to work
• Initial self-review to fix basic typos and grammar completed

Rocky Documentation checklist (Completed by Rocky team)

• 1st Pass (Document is good fit for project and author checklist completed)
• 2nd Pass (Technical Review - check for technical correctness)
• 3rd Pass (Detailed Editorial Review and Peer Review)
• Final approval (Final Review)

[github-actions]

Test results for 0ce9275:

Number of broken URLs: 1

URL,RESULT,FILENAME
 https://azuremarketplace.microsoft.com/en-us/marketplace/apps/resf.rockylinux-aarch64,failed,guides/cloud/migration-to-new-azure-images.md

[sspencerwire]

@ChrSteinert Gotta ask: If what you say is true, is it reflected in this line in both files (the manual link):

Other file types are supported: pod, volume, network, image, and kube. Pods, for instance, can be used to group containers – the generated systemd services and their dependencies (create the pod before the containers) are automatically managed by systemd.

[sspencerwire]

@ChrSteinert Gotta ask: If what you say is true, is it reflected in this line in both files (the manual link):

Other file types are supported: pod, volume, network, image, and kube. Pods, for instance, can be used to group containers – the generated systemd services and their dependencies (create the pod before the containers) are automatically managed by systemd.

I must say that I do not know the answer to this, but thought perhaps a quick discussion before I approve and merge would be a good idea.

[ChrSteinert]

Oh well yes, of course – my fault for not providing a source in the fist place!

For one, I tried following the guide on latest Rocky Linux and got an error. This is not surprising, as the documentation is quite clear about this;
Podman service files are considered transient by systemd, and can thus not be enabled.
The generator (quadlet) thus applies Install sections explicitly, during generation.

I hope this is sufficient.
would be happy to amend, if wanted.

[sspencerwire]

Thank you @ChrSteinert