chore: remove systemd unit disable for unknown services on bluefin-dx

[ledif]

There are no units named pmie.service or pmlogger.service. Trying to disable them is throwing errors that these units do not exist when building dx variants.

Stable: https://github.com/ublue-os/bluefin/actions/runs/12604017907/job/35130160146

2025-01-03T21:38:43.1653202Z + systemctl disable pmie.service
2025-01-03T21:38:43.1774426Z Failed to disable unit: Unit pmie.service does not exist
2025-01-03T21:38:43.1775098Z Failed to disable unit: Unit pmie.service does not exist
2025-01-03T21:38:43.1783989Z + systemctl disable pmlogger.service
2025-01-03T21:38:43.1904775Z Failed to disable unit: Unit pmlogger.service does not exist
2025-01-03T21:38:43.1905417Z Failed to disable unit: Unit pmlogger.service does not exist

GTS: https://github.com/ublue-os/bluefin/actions/runs/12532949173/job/34952152148

2024-12-29T06:03:04.6735521Z + systemctl disable pmie.service
2024-12-29T06:03:04.6857150Z Failed to disable unit, unit pmie.service does not exist.
2024-12-29T06:03:04.6857921Z Failed to disable unit, unit pmie.service does not exist.
2024-12-29T06:03:04.6869052Z + systemctl disable pmlogger.service
2024-12-29T06:03:04.6989691Z Failed to disable unit, unit pmlogger.service does not exist.
2024-12-29T06:03:04.6990463Z Failed to disable unit, unit pmlogger.service does not exist.

[castrojo]

I am 90% sure these are vestigial anyway, thanks for the cleanup!