PostDatabaseManager contains commented out update methods

[Daniel Zoller]

e.g. performUpdateOnlyNormalize and performUpdateOnlyPrivacy

I don't know about the status of the update methods, @sdoerfel what's the status?

[Stephan Doerfel]

status is, they are not used and there is currently no special handling for these cases. If someone should start working on this again, they may or maynot use it