remove a promise_repaired class from reports: type promise.

* it doesn't need to alert on terminal as current 3.6 is complaining out loud anyway.
```
2014-02-17T12:12:37+0100    error: Couldn't find a private key at '/var/cfengine/ppkeys/localhost.priv', use cf-key to get one. (fopen: No such file or directory)
2014-02-17T12:12:37+0100  warning: No public/private key pair is loaded, trying to reload
2014-02-17T12:12:37+0100    error: Couldn't find a private key at '/var/cfengine/ppkeys/localhost.priv', use cf-key to get one. (fopen: No such file or directory)
2014-02-17T12:12:37+0100    error: No public/private key pair found
2014-02-17T12:12:37+0100    error: Couldn't find a private key at '/var/cfengine/ppkeys/localhost.priv', use cf-key to get one. (fopen: No such file or directory)
2014-02-17T12:12:37+0100  warning: No public/private key pair is loaded, trying to reload
2014-02-17T12:12:37+0100    error: Couldn't find a private key at '/var/cfengine/ppkeys/localhost.priv', use cf-key to get one. (fopen: No such file or directory)
2014-02-17T12:12:37+0100    error: No public/private key pair found
```
* we don't need to rely on promise_repaired class from reports: type promise as it doesn't work on 3.6 either.