Revert "Rename adaptive globe to globe-to-mercator (#878)"

[birkskyum]

This reverts commit d009e1d. (the changes were published on website, but not in style spec package)

Reverting in favor of

• Add projection expression syntax #888 (comment)

It's just so the website is aligned with published spec, and so these changes doesn't clutter the new expression pr

Launch Checklist

• Confirm your changes do not include backports from Mapbox projects (unless with compliant license) - if you are not sure about this, please ask!
• Briefly describe the changes in this PR.
• Link to related issues.
• Include before/after visuals or gifs if this PR includes visual changes.
• Write tests for all new functionality.
• Document any changes to public APIs.
• Post benchmark scores.
• Add an entry to CHANGELOG.md under the ## main section.