Merge pull request #580 from fastly/dgohman-fastly/cleanup

Remove WIT files that are not currently used.

Author: dgohman-fastly

CHANGELOG.md

@@ -4,6 +4,7 @@
 - Add support for "library" components which don't export `http_incoming`.
 - Add non-shift adapter when user module is using wit-bindgen.
 - Update to Wasmtime 39 ([#584](https://github.com/fastly/Viceroy/pull/584))
+- Remove unused WIT files from the source tree.
 
 ## 0.16.4 (2026-01-26)