Fix healthcheck issues with sdnc and ccsdk

Fix listen port for ccsdk, fix image download with sdnc, fixed teardown.sh to bring down dgbuilder.

Change-Id: Ib0d6c85a6f75fdfbc46dc88d6db4fdaf9296fadf
Issue-ID: INT-230
Signed-off-by: Stilwell, David (stilwelld) <stilwelld@att.com>
diff --git a/test/csit/plans/sdnc/healthcheck/health_check.sh b/test/csit/plans/sdnc/healthcheck/health_check.sh
index 96c9984..e8b5056 100644
--- a/test/csit/plans/sdnc/healthcheck/health_check.sh
+++ b/test/csit/plans/sdnc/healthcheck/health_check.sh
@@ -17,6 +17,8 @@
 SCRIPTS="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 echo $SCRIPTS
 
+unset http_proxy https_proxy
+
 response=$(curl --write-out '%{http_code}' --silent --output /dev/null -H "Authorization: Basic YWRtaW46S3A4Yko0U1hzek0wV1hsaGFrM2VIbGNzZTJnQXc4NHZhb0dHbUp2VXkyVQ==" -X POST -H "X-FromAppId: csit-sdnc" -H "X-TransactionId: csit-sdnc" -H "Accept: application/json" -H "Content-Type: application/json" http://localhost:8282/restconf/operations/SLI-API:healthcheck )
 
 if [ "$response" == "200" ]; then