Cleanup CDAP undeploy function

Cleanup CDAP undeploy function

Removes misleading logging statements in undeploy workflow. Undeploy can
be triggered by a failed deploy, where those logs were incorrect, and
moreover the EELF logs already contained the info necessary to debug.

Also attempt to add ONAP build artifacts

Issue-ID: DCAEGEN2-87
Change-Id: I46654a5c0d3b7aceb565be67ca98ca807a28eede
Signed-off-by: Tommy Carpenter <tommy@research.att.com>
Signed-off-by: Lusheng Ji <lji@research.att.com>