Cleanup after zipping to save space on constrained nodes e.g. Berlin

Change-Id: I48f7409bf84655b4a0e89c1da459c5896dfacbec
diff --git a/jjb/pipeline/voltha-dt-physical-functional-tests.groovy b/jjb/pipeline/voltha-dt-physical-functional-tests.groovy
index 0b73874..f6498c9 100644
--- a/jjb/pipeline/voltha-dt-physical-functional-tests.groovy
+++ b/jjb/pipeline/voltha-dt-physical-functional-tests.groovy
@@ -279,12 +279,18 @@
 
       gzip error-report.log || true
 
+      rm error-report.log
+
       cd $WORKSPACE/kind-voltha/scripts/logger/combined/
       tar czf $WORKSPACE/container-logs.tgz *
 
+      rm *
+
       cd $WORKSPACE
       gzip *-combined.log || true
 
+      rm *-combined.log
+
       # collect ETCD cluster logs
       mkdir -p $WORKSPACE/etcd
       printf '%s\n' $(kubectl get pods -l app=etcd -o=jsonpath="{.items[*]['metadata.name']}") | xargs -I@ bash -c "kubectl logs @ > $WORKSPACE/etcd/@.log"
diff --git a/jjb/pipeline/voltha-physical-functional-tests.groovy b/jjb/pipeline/voltha-physical-functional-tests.groovy
index 15eaad7..7bcf7d3 100644
--- a/jjb/pipeline/voltha-physical-functional-tests.groovy
+++ b/jjb/pipeline/voltha-physical-functional-tests.groovy
@@ -273,12 +273,18 @@
 
       gzip error-report.log || true
 
+      rm error-report.log
+
       cd $WORKSPACE/kind-voltha/scripts/logger/combined/
       tar czf $WORKSPACE/container-logs.tgz *
 
+      rm *
+
       cd $WORKSPACE
       gzip *-combined.log || true
 
+      rm *-combined.log
+
       # collect ETCD cluster logs
       mkdir -p $WORKSPACE/etcd
       printf '%s\n' $(kubectl get pods -l app=etcd -o=jsonpath="{.items[*]['metadata.name']}") | xargs -I@ bash -c "kubectl logs @ > $WORKSPACE/etcd/@.log"
diff --git a/jjb/pipeline/voltha-tt-physical-functional-tests.groovy b/jjb/pipeline/voltha-tt-physical-functional-tests.groovy
index 687fb66..c6f893a 100644
--- a/jjb/pipeline/voltha-tt-physical-functional-tests.groovy
+++ b/jjb/pipeline/voltha-tt-physical-functional-tests.groovy
@@ -216,11 +216,17 @@
 
       gzip error-report.log || true
 
+      rm error-report.log
+
       cd $WORKSPACE/kind-voltha/scripts/logger/combined/
       tar czf $WORKSPACE/container-logs.tgz *
 
+      rm *
+
       cd $WORKSPACE
       gzip *-combined.log || true
+
+      rm *-combined.log
       '''
       script {
         deployment_config.olts.each { olt ->