[Bug]: http-specs is not synced with cadl-ranch

[weidongxu-microsoft]

Describe the bug

https://github.com/microsoft/typespec/tree/main/packages/http-specs/specs/type/model/templated should not be there

https://github.com/microsoft/typespec/blob/main/packages/http-specs/specs/versioning/removed/main.tsp is not up to date

Reproduction

generate code from http-specs

Checklist

• Follow our Code of Conduct
• Check that there isn't already an issue that request the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion.
• The provided reproduction is a minimal reproducible example of the bug.

[weidongxu-microsoft]

.NET dev will handle this.