我如何整理這個Git日志

對于下面的Git日志，我如何修剪（完全移除）連接在15acb99處并在隱藏中結束的分支。它不再需要了。

$ git log --oneline --graph --decorate --all
* bc03ce7 (HEAD -> main) Implemented basic Auth0 functionality
* 38ed987 updated Readme
* 441f915 Addded graphql-codegen and embelished query org_unit
* c724f4a added Apollo Rover
*   6efbd90 Merge branch 'codegen'
|\
| * fc891c1 correct .gitignore to ignore node_modules
* | 128a914 removed pnpm
|/
| *   f187ecb (refs/stash) WIP on auth0: 7fb18d9 Login/Out button implmented on Home page
| |\
| | * de4b497 index on auth0: 7fb18d9 Login/Out button implmented on Home page
| |/
| * 7fb18d9 Login/Out button implmented on Home page
| * 32e5959 Auth0 added and working - log in and display profile, basic protection of routes
|/
* 15acb99 added apollo packages and first query, add /clubs route to display OrgUnits
* 56c88ea Added Vue Router to Frontend
* 8e5bb96 Frontend initiated
* 769e86d Initial seed data added
* 592c8ac create tables OrgUnit and Person
* 3563cf3 init hasura migrations and metadata
* 93a20c7 init

我害怕把事情搞砸。