ssh.foo and ssh['foo'] were accidentally silcening output from commands

`ssh.foo` and `ssh['foo']` were accidentally silcening output from commands (e.g. 'opening new channel', 'receiving all data')

```
[+] Connecting to bandit.labs.overthewire.org on port 22: OK
[+] Opening new channel: 'whoami': OK
[+] Recieving all data: OK
[*] username: bandit0
```

vs.

```
[+] Connecting to bandit.labs.overthewire.org on port 22: OK
[*] username: bandit0
```