T6527: add legacy Vyatta interpreter files still in use

[c-po]

Change Summary

Remove legacy packages from ISO build.

• vyatta-cfg-system
• vyatta-op

Are no longer required and migrated to vyos-1y. vyatta-wanloadbalance, vyatta-bash and vyatta-cfg are now a direct dependency of vyos-1x, so everything in one place.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Code style update (formatting, renaming)
• Refactoring (no functional changes)
• Migration from an old Vyatta component to vyos-1x, please link to related PR inside obsoleted component
• Other (please describe):

Related Task(s)

• https://vyos.dev/T6527

Related PR(s)

• T6527: remove legacy packages vyos-build#680
• T6527: remove legacy Perl library components vyatta-cfg#83

Smoketest result

Checklist:

• I have read the CONTRIBUTING document
• I have linked this PR to one or more Phabricator Task(s)
• I have run the components SMOKETESTS if applicable
• My commit headlines contain a valid Task id
• My change requires a change to the documentation
• I have updated the documentation accordingly

[dmbaturin]

I think we should add license headers with attribution to Vyatta at least to all non-trivial files. Maybe even just add them to all files, even allowed-op and similar, just to make it clear where they came from and who the real author is — it's unlikely that we'll get into legal trouble for not attributing trivial files, but I think it's a good thing to do.

We can also clean files from legacy stuff like serial WAN, since it was never supported in VyOS anyway.

[c-po]

I think we should add license headers with attribution to Vyatta at least to all non-trivial files. Maybe even just add them to all files, even allowed-op and similar, just to make it clear where they came from and who the real author is — it's unlikely that we'll get into legal trouble for not attributing trivial files, but I think it's a good thing to do.

We can also clean files from legacy stuff like serial WAN, since it was never supported in VyOS anyway.

All requested changes addressed.

[github-actions]

👍 VyOS CLI smoketests finished successfully!

[c-po]

@Mergifyio backport circinus

[mergify]

backport circinus

✅ Backports have been created

• #3766 T6527: add legacy Vyatta interpreter files still in use (backport #3745) has been created for branch circinus