Implement the ceph osd destroy feature in ceph-deploy.

    1. handle osd already out
    2. handle osd did not blong any hostname
    3. handle osd is not in acting set

Usage: ceph-deploy osd destroy <hostname> --osd-id <osd-id>

I think it may be helpful for someone new to ceph who want to destroy osd.
If you have any questions, feel free to let me know.

Thanks!!

wouldn't you prefer to just call the process without eating the stdout + stderr? 

The improvement here would be to also see what command was being run and with what output
so that it is easier to debug (e.g. you are not raising an error `if code != 0`.

So this could be rewritten as:

    remoto.process.run(
        conn,
        command,
    )