Correction of implementing mistake concerning emission value #1759

[nelekoehler]

Summary of the discussion

This PR fixes the implementing mistakes concerning emission value. #1759

Remove

• emission value (there accidentally existed two of them)

Workflow checklist

Automation

Closes #1759

PR-Assignee

• [ ] 🐙 Follow the Pull Request Workflow
• [ ] 📝 Update the CHANGELOG.md
• [ ] 📙 Add #'s to term tracker item

Reviewer

• [ ] 🐙 Follow the Reviewer Guide
• [ ] 🐙 Provided feedback and show sufficient appreciation for the work done

[l-emele]

I noticed, that for some reason emission factor value (OEO:00340063) has a German instead of an English language tag:

rdfs:label "emission factor value"@de

Therefore not shown properly in Protégé:

You might fix that bug in this PR, too.