text: Title: Clean up legacy dependecies from `eval/`
  Body: We don't use codeblue anymore. It's just legacy code. Just need to verify and clean up any dangling references, and remove this dependency. 
  
  To remove: https://github.com/ShishirPatil/gorilla/tree/main/eval/eval-scripts/codebleu
  Check for dependencies: https://github.com/ShishirPatil/gorilla/tree/main/eval/eval-scripts/*