Update roles in site manifest

1. remove roles that we are not going to deploy.

We have plenty of roles to maintain without making up new ones.

2. don't deploy ceph profiles on controllers

b/c it doesn't work yet

3. add the actual storage roles

- st (osd only)
- stmon (osd + mon)
- stmonleader (osd + mon leader)
I was still in the process of running an integration test and had not seen this failure yet. I will add this role back.