Simplify CCSDK Distribution CSIT

 - remove runtime dependency to integation/csit and copy the scripts
   to local repo
 - remove unnecessary chrome and selenium installations
 - remove obsolete comment reference to UNIQUE_DOCKER_TAG

Issue-ID: CCSDK-3174
Signed-off-by: Lasse Kaihlavirta <l.kaihlavirt@partner.samsung.com>
Change-Id: Iaedb8f853ca048817b403c1e0e0c67563a65db8a
4 files changed