[MacPorts] #69881: podman: drop qemu dependency

[MacPorts]

#69881: podman: drop qemu dependency
------------------------+--------------------
 Reporter:  mohd-akram  |      Owner:  (none)
     Type:  defect      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:
 Keywords:              |       Port:  podman
------------------------+--------------------
 Per the
 [https://github.com/containers/podman/blob/main/RELEASE_NOTES.md#500
 release notes], "QEMU is no longer a supported VM provider for podman
 machine on Mac", so perhaps the dependency can be dropped.

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Ticket URL: <https://trac.macports.org/ticket/69881>
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