* gnu/system/vm.scm (etc-directory): Remove 'resolv.conf'.
(system-qemu-image): Use 'static-networking-service' with
#:name-servers. Don't populate the image with /etc/resolv.conf.
* gnu/system/dmd.scm (static-networking-service): Add #:name-servers
parameter. Use it to populate /etc/resolv.conf.