update test_dns
update test_dns

Don't check NS records for now because they will only appear on zones.
If a hostname is a subdomain on a zone and not itself a zone, it will
lack NS records.

Also stop testing for ADSP, which we dropped in 126ea94ccf9d90d9b6b008bbba1c6d5ffa4460ec.

mail-in-a-box/mailinabox,nstanke/mailinabox,jjz/mailinabox,mboersma/mailinabox,hnk/mailinabox,Toilal/mailinabox,pierreozoux/mailinabox,b-deng/mailinabox,ianberinger/mailinabox,mboersma/mailinabox,d5ve/mailinabox,Neopallium/mailinabox,jjz/mailinabox,jprice/mailinabox,choltha/mailinabox,jprice/mailinabox,PortableTech/mailinabox,PortableTech/mailinabox,hnk/mailinabox,jjz/mailinabox,m4rcs/mailinabox,pierreozoux/mailinabox,jmedding/mailinabox,pierreozoux/mailinabox,b-deng/mailinabox,ianberinger/mailinabox,nstanke/mailinabox,PortableTech/mailinabox,jmedding/mailinabox,pichak/mailinabox,choltha/mailinabox,mail-in-a-box/mailinabox,PortableTech/mailinabox,hnk/mailinabox,jmedding/mailinabox,m4rcs/mailinabox,Toilal/mailinabox,mail-in-a-box/mailinabox,ianberinger/mailinabox,Neopallium/mailinabox,jmedding/mailinabox,hnk/mailinabox,mboersma/mailinabox,jmedding/mailinabox,ianberinger/mailinabox,b-deng/mailinabox,mail-in-a-box/mailinabox,choltha/mailinabox,brocktice/mailinabox,b-deng/mailinabox,Toilal/mailinabox,jprice/mailinabox,m4rcs/mailinabox,m4rcs/mailinabox,Neopallium/mailinabox,jjz/mailinabox,Neopallium/mailinabox,brocktice/mailinabox,mboersma/mailinabox,nstanke/mailinabox,pichak/mailinabox,nstanke/mailinabox,jprice/mailinabox,Toilal/mailinabox,ianberinger/mailinabox,brocktice/mailinabox,pierreozoux/mailinabox,pichak/mailinabox,mboersma/mailinabox,choltha/mailinabox,pichak/mailinabox,b-deng/mailinabox,d5ve/mailinabox,nstanke/mailinabox,d5ve/mailinabox,choltha/mailinabox,d5ve/mailinabox,Neopallium/mailinabox,jjz/mailinabox,brocktice/mailinabox,brocktice/mailinabox,pierreozoux/mailinabox,d5ve/mailinabox,m4rcs/mailinabox,PortableTech/mailinabox,jprice/mailinabox