move all dns_sdb code into bin/named/builtin.c, which is the only place from which it's called. (note this is temporary: later we'll refactor builtin so that it's a standalone dns_db implementation on its own instead of using SDB as a wrapper.)
move all dns_sdb code into bin/named/builtin.c, which is the only place from which it's called. (note this is temporary: later we'll refactor builtin so that it's a standalone dns_db implementation on its own instead of using SDB as a wrapper.)