I got into a pickle where I encrypted the ssh keys I use for my SSH connections on LAN, but then I couldn't run my ansible playbook on my server! ssh-keygen -p and leave the new passphrase blank saved my day (although password protected key files are safer!)

TL;DR - just reset it to nothing

ssh-keygen -p will let you reset the passphrase on your ssh keys (good for you! yay security!)

But I needed to remove the passphrase to quickly deploy an ansible playbook 🤓