// delete branch locally
git branch -d localBranchName
// delete branch remotely
git push origin --delete remoteBranchName
// 1. delete branch locally
git branch -d localBranchName
// 2. delete branch remotely
git push origin --delete remoteBranchName
// 3. DONE!
$ git push -d <remote_name> <branch_name>
$ git branch -d <branch_name>