Revert "BugFix: controlled vocab values validation"

[landreev]

Reverts #11950

We have to revert the PR, since it broke OAI harvesting when using oai_dc format (which happens to be the most popular OAI format).
It also broke the following 5 tests:

edu.harvard.iq.dataverse.api.HarvestingClientsIT.testHarvestingClientRun_AllowHarvestingMissingCVV_True_WithSourceName
edu.harvard.iq.dataverse.api.HarvestingClientsIT.testHarvestingClientRun_AllowHarvestingMissingCVV_True
edu.harvard.iq.dataverse.api.HarvestingClientsIT.testHarvestingFromDatacite
edu.harvard.iq.dataverse.api.HarvestingClientsIT.testHarvestingClientRun_AllowHarvestingMissingCVV_False
edu.harvard.iq.dataverse.api.SearchIT.testDataverseDatasetCounts

... however, for some strange reason Jenkins tests were not run on this PR since https://jenkins.dataverse.org/job/IQSS-Dataverse-Develop-PR/view/change-requests/job/PR-11950/9/ (i.e., since November, where it passed), and that must be the reason why this was not detected before the PR was merged.

[edit: and that must be the reason why this was not detected before the PR was merged - actually, I'm not 100% about this; vs some scenario where there were in fact more Jenkins runs, but they somehow got deleted - ? Doesn't matter at this point, really]

[coveralls]

coverage: 24.873% (-0.001%) from 24.874% — revert-11950-11900-improved-cvoc-value-validation into develop

[github-actions]

📦 Pushed preview images as

ghcr.io/gdcc/dataverse:revert-11950-11900-improved-cvoc-value-validation

ghcr.io/gdcc/configbaker:revert-11950-11900-improved-cvoc-value-validation

🚢 See on GHCR. Use by referencing with full name as printed above, mind the registry name.