Moves the code that removes default cloud interfaces
into the dhcp-all-interfaces element. Having it live in
stable-interface-names won't work right now because we
need this for virtualized testing.
Change-Id: I3166951c6fbb2faec53ffc339edd2fd0c3512300
Virtual baremetal instances have their NICs show up as ens4
which doesn't play nicely as a default in devtest at
the moment.
Ideally we'd want it to be em1 like real baremetal
(which is why we put this in the baremetal element
to begin with). Turns out the baremetal element is
required in devtest so we can extract the ramdisk and kernel
so lets leave it alone for now and move this elsewhere
until we get a better solution for fake 'baremetal'
testing.
Closes-bug: #1298152
Change-Id: Ia71e1d32b93db0c4c844a6dc1ebcd04ab0c13f05
