[SDC] Use default template for CSIT jobs

Revert from using integration templates for CSIT
Use default verify-java template but keep split of jobs to save on running time
Merge job is back to single job as we don't need // for merge

Issue-ID: SDC-3465
Signed-off-by: ChrisC <christophe.closset@intl.att.com>
Change-Id: I84a62d66a4aea8f0854e1202984a689bb3f5c58f
2 files changed