https://serverfault.com/questions/515833/how-to-remove-private-key-password-from-pkcs12-container
Export to temporary pem file
openssl pkcs12 -in protected.p12 -nodes -out temp.pem
# -> Enter password
Convert pem back to p12
openssl pkcs12 -export -in temp.pem -out unprotected.p12
# -> Just press [return] twice for no password
Remove temporary certificate
rm temp.pem