Revert "Merge branch 'pint-update' into 'develop'"

nomad/cli/dev.py

nomad/config/models/plugins.py

nomad/config/models/ui.py

nomad/metainfo/data_type.py

nomad/metainfo/util.py

nomad/normalizing/optimade.py

nomad/units/default_en.txt

pyproject.toml

requirements-dev.txt

requirements-plugins.txt

requirements.txt

test_plugins.txt

tests/metainfo/test_metainfo.py

tests/normalizing/conftest.py

tests/test_config.py