host-deploy: InstallVdsCommand: remove redundant case

switch is going over all cases, in case of 'default' we actually have
internal error.

having case without break with logic within is not best practice for
procedural programming as there are two entries into single block.

for now just remove that case.

Change-Id: I45a7294e582ed24159d749be069533fb5f44f855
Signed-off-by: Alon Bar-Lev <alonbl@redhat.com>
host-deploy: sync node upgrade to vds deploy

during the move to network processing within engine, the node upgrade
and vds deploy became out of sync, it could have been easily been solved
by adding handleError(e, VDSStatus.InstallFailed) at exception handler,
however better to sync the two.

Change-Id: Ie1c2733597f0d7408dd0b863b42412b479dfcd15
Signed-off-by: Alon Bar-Lev <alonbl@redhat.com>