Delete open but merged branches from production environment

deleteMergedOpenBranches.js

# Delete a single open branch but merged branch from production environment
git push origin :remotes/origin/<branch_name>

#Delete all open but merged branches from production environment
for i in `git branch -r --merged production | grep -v "production" | awk -F / '{print $2}'`; do git push origin :$i; done

# check remaining branches count
git branch -a | wc -l