chore: remove useless condition

[marcoieni]

No description provided.

[shepmaster]

For future context...

My guess is that when starting from a totally fresh installation there isn't an OS user called shep. Therefore the aws command to add the SSH key has permissions to run and "succeeds", but does nothing useful.

The correct command is

aws ec2-instance-connect send-ssh-public-key [...] --instance-os-user 'ubuntu' [...]

Followed by a

./apply prod [...] -u ubuntu

[marcoieni]

thanks, I wrote this in #582