Possibly Unneeded Database Attributes

[TomLy]

While straightening out the fedoraPerson schema I'm running into
attributes in the current accountsDB that aren't used or are all the
same value for all users.  My plan is to get rid of these if possible.
We can add attributes later if needed.

Here they are in no particular order:
internal_comments -- this is always blank right now
wiki_prefs -- also always blank
orts_orgid -- always Fedora

Comments, concerns, chairs??

~tom