Remove standalone_supported_challenges value from manual test
Remove standalone_supported_challenges value from manual test

lmcro/letsencrypt,lmcro/letsencrypt,jtl999/certbot,stweil/letsencrypt,jsha/letsencrypt,jtl999/certbot,stweil/letsencrypt,jsha/letsencrypt,letsencrypt/letsencrypt,bsmr-misc-forks/letsencrypt,letsencrypt/letsencrypt,bsmr-misc-forks/letsencrypt