[Swan] puzzled by ikev2_delete_out

[D. Hugh Redelmeier]

At the end of ikev2_delete_out, after the label "end", there is code to 
delete states.  It is only used if something has gone wrong with sending a 
delete to the other side.

There is a while loop that seems to change the state of every state object 
on the same hash chain as the victim.  What's the reason for that?  
Is there any meaningful relationship between state objects on a hash 
chain?