Revert "[DESIGN2-104] Dropdowns - Add thick and thin label type style…

[daynew]

This reverts commit 53f1501.

Links

• Slack
• PR being reverted: [DESIGN2-104] Dropdowns - Add thick and thin label type styles #57827
• Failed Eyes test

Deployment strategy

Follow-up work

Privacy

Security

Caching

PR Checklist:

• Tests provide adequate coverage
• Privacy and Security impacts have been assessed
• Code is well-commented
• New features are translatable or updates will not break translations
• Relevant documentation has been added or updated
• User impact is well-understood and desirable
• Pull Request is labeled appropriately
• Follow-up work items (including potential tech debt) are tracked and linked