Removed the ORM integration

[pimjansen]

What is the reason for this PR?

Removed the ORM integration

• [ ] A new feature
• [x] Fixed an issue (resolve #758)

Author's checklist

• [x] Follow the Contribution Guide
• [x] New features and changes are documented

Summary of changes

Removed the ORM integration and name guesser

Review checklist

• [x] All checks have passed
• [x] Changes are added to the CHANGELOG.md
• [x] Changes are approved by maintainer

[localheinz]

Thank you, @pimjansen!