input-output-hk/cardano-node#5222 Remove of reading of ApplicationName and ApplicationVersion from node config and replace with hardcoded values

[carbolymer]

Description

This is a part of IntersectMBO/cardano-node#5222 . Removes reading of ApplicationName and ApplicationVersion from FromJSON instances.

Changelog

- description: |
    Remove support for reading `ApplicationName` and `ApplicationVersion` from node configuration and replace with hardcoded values.
  compatibility: breaking
  type: feature

Checklist

• Commit sequence broadly makes sense and commits have useful messages
• New tests are added if needed and existing tests are updated. These may include:
  • golden tests
  • property tests
  • roundtrip tests
  • integration tests
    See Runnings tests for more details
• Any changes are noted in the CHANGELOG.md for affected package
• The version bounds in .cabal files are updated
• CI passes. See note on CI. The following CI checks are required:
  • Code is linted with hlint. See .github/workflows/check-hlint.yml to get the hlint version
  • Code is formatted with stylish-haskell. See .github/workflows/stylish-haskell.yml to get the stylish-haskell version
  • Code builds on Linux, MacOS and Windows for ghc-8.10.7 and ghc-9.2.7
• Self-reviewed the diff

Note on CI

If your PR is from a fork, the necessary CI jobs won't trigger automatically for security reasons.
You will need to get someone with write privileges. Please contact IOG node developers to do this
for you.

[Jimbo4350]

We should leave a comment here saying these have no functional impact in the Shelley eras onwards and therefore we opt to hard code them because of this