chore: [IOCOM-2187] Remove unused code for payments on messages

[Vangaorth]

Short description

This PR removes unused code on payments for message details.

List of changes proposed in this pull request

• Removed unused code

How to test

Using the io-dev-api-server, check that a payment linked to a message can be:

• unpaid (successful response)
• paid (error response with PAA_PAGAMENTO_DUPLICATO and PPT_PAGAMENTO_DUPLICATO)
• ongoing (error response with PAA_PAGAMENTO_IN_CORSO and PPT_PAGAMENTO_IN_CORSO)
• revoked (error response with PAA_PAGAMENTO_ANNULLATO)
• expired (error response with PAA_PAGAMENTO_SCADUTO)
• a generic error

[github-actions]

PR Title Validation for conventional commit type

✅ All good! PR title follows the conventional commit type.

[github-actions]

Jira Pull Request Link

This Pull Request refers to Jira issues:

• IOCOM-2187

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 47.55%. Comparing base (04d2853) to head (3b77a47).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6765      +/-   ##
==========================================
- Coverage   51.09%   47.55%   -3.54%     
==========================================
  Files        1583     1580       -3     
  Lines       32710    32587     -123     
  Branches     7404     7324      -80     
==========================================
- Hits        16712    15496    -1216     
- Misses      15952    17044    +1092     
- Partials       46       47       +1     

Files with missing lines	Coverage Δ
ts/utils/payment.ts	91.37% <ø> (+28.06%)	⬆️

... and 110 files with indirect coverage changes

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update a22d8c7...3b77a47. Read the comment docs.