We have put files into the commit history that we do not need to keep. For example, a json, csv, or xslx file that is unnecessary. Therefore, we should use BFG to clean up the repo:
https://github.com/istio-ecosystem/authservicertyley.github.io/bfg-repo-cleaner/
Steps to take:
`brew install openjdk`
download BFG
prune local branches with `git remote prune origin` if needed, so that your branches that don't exist on origin stop carrying the baggage forward
If that doesn't work, then we can try:
`cd /tmp`
`git clone --mirror <ironbank-tools repo>`
`java -jar ~/Downloads/bfg-1.13.1.jar --delete-files *.xlsx ironbank-tools.git`