Add Ubuntu ssh host key type ed25519 cleanup
Add Ubuntu ssh host key type ed25519 cleanup

clalancette/oz,ndonegan/oz,moofrank/oz,clalancette/oz,mgagne/oz,mgagne/oz,NeilBryant/oz,cernops/oz,cernops/oz,imcleod/oz,nullr0ute/oz,nullr0ute/oz,NeilBryant/oz,moofrank/oz,ndonegan/oz,imcleod/oz