如何从GITHUB的本地分支机构列表中删除同事分支机构

During a session of work, I took a look twice at a colleague branch updates using git fetch origin and git checkout origin/branchname. After looking at the branch the second time, I noticed that the branch is now part of my list of my local branches when i type git branch and i no longer see it among the other colleagues list of branches when i type git fetch origin.

该人已经提交了拉取请求。

My question: if i use git branch -d branchname to delete it from my local list of branches, will it affect his branch as well?

The reason I am asking this question is that I use git push --all to push all changes to my local branch, and if I try to use it now i am afraid that it will display his branch among the branches.

期待任何有益的建议。