Remove the vscode-syntax-highlighting package

[janechu]

Pull Request

📖 Description

Removal of the fast-tagged-templates package as this is being deprecated.

🎫 Issues

Closes #6953.

✅ Checklist

General

• [ ] I have included a change request file using $ yarn change
• [ ] I have added tests for my changes.
• [x] I have tested my changes.
• [ ] I have updated the project documentation to reflect my changes.
• [x] I have read the CONTRIBUTING documentation and followed the standards for this project.

⏭ Next Steps

• Post a deprecated message to the npm package.

[radium-v]

I cloned this project to a personal repository here: https://github.com/radium-v/fast-vscode-syntax-highlighting