statedir, lockdir?

[Ville Skyttä]

Hi,

Is "statedir" still used for something in 21.4.20 or 21.5.28?  I couldn't find 
such a case in a quick grep session.  Also, does 21.5.x still use a separate 
lock dir of some kind for tracking whether some files are being edited?  
Couldn't find evidence of that either.

If someone can confirm that statedir is no longer used, I can look into 
providing a patch that gets rid of it.