packaging: build: do not use maven deploy

maven deploy requires maven to be online, while fedora's maven is set
into offline mode.

using maven deploy into temp repository directory does not allow partial
build of project.

after the jboss module changes, we only fetch poms from the temp
repository, so there is no actual need for it, as we do have these poms
within tree.

add maven target to allow execution of maven without condition.

Change-Id: Iebcce8209c8a50c12a25816520233ce98af3cc32
Signed-off-by: Alon Bar-Lev <alonbl@redhat.com>