openldap 2.4.13 and db4

[Adam CiarciÅski <adam%NetBSD.org@localhost>]

Greetings,

After updating openldap to 2.4.13 we can make databases/openldap- 
server depend on db4-4.7.25.3 (rather than db46). I confirm, slapd  
works fine with db-4.7.x.

If someone could verify that lang/clips works with db-4.7.x, then I  
think databases/db46 can be removed, since no other package depends on  
it.

Cheers,
Adam