clean up folder used as pseudo branches of voltha pipeline-scripts

* delete all folders used as pseudo branches for older voltha releases
  (including the unused playground) since those pipeline-scripts are now
  pulled in from the respective release branches for ci-management and
  are not needed in master anymore
* move all files from pseudo branch jjb/pipeline/voltha/master folder to
  jjb/pipeline/voltha folder to remove the mention of a branch in the
  script repo path
* remove 'master/' from path for all active pipeline scripts
* remove makefile used previously to copy folders as pseudo branches for
  releases

Signed-off-by: Jan Klare <jan.klare@bisdn.de>
Change-Id: Ib2f93ec021d0e12f70d550ccadd812c6408bf1ce
Signed-off-by: Jan Klare <jan.klare@bisdn.de>
diff --git a/jjb/voltha-scale.yaml b/jjb/voltha-scale.yaml
index e970d1b..6b41b15 100644
--- a/jjb/voltha-scale.yaml
+++ b/jjb/voltha-scale.yaml
@@ -30,7 +30,7 @@
       - 'voltha-scale-measurements':
           name: 'voltha-scale-measurements-master-experimental-multi-stack'
           build-node: 'voltha-scale-2'
-          pipeline-script: 'voltha/master/voltha-scale-multi-stack.groovy'
+          pipeline-script: 'voltha/voltha-scale-multi-stack.groovy'
           pipeline-branch: 'master'
           # trigger on Feb 29th (a.k.a only trigger it manually)
           time-trigger: "H 0 29 2 *"
@@ -223,7 +223,7 @@
       - 'voltha-scale-measurements':
           name: 'voltha-scale-measurements-master-10-stacks-2-16-32-att-subscribers'
           build-node: 'voltha-scale-2'
-          pipeline-script: 'voltha/master/voltha-scale-multi-stack.groovy'
+          pipeline-script: 'voltha/voltha-scale-multi-stack.groovy'
           pipeline-branch: 'master'
           time-trigger: "H H/4 * * *"
           disable-job: true
@@ -247,7 +247,7 @@
       - 'voltha-scale-measurements':
           name: 'voltha-scale-measurements-master-10-stacks-2-16-32-dt-subscribers'
           build-node: 'voltha-scale-2'
-          pipeline-script: 'voltha/master/voltha-scale-multi-stack.groovy'
+          pipeline-script: 'voltha/voltha-scale-multi-stack.groovy'
           pipeline-branch: 'master'
           time-trigger: "H H/4 * * *"
           disable-job: true
@@ -271,7 +271,7 @@
       - 'voltha-scale-measurements':
           name: 'voltha-scale-measurements-master-10-stacks-2-16-32-tt-subscribers'
           build-node: 'voltha-scale-2'
-          pipeline-script: 'voltha/master/voltha-scale-multi-stack.groovy'
+          pipeline-script: 'voltha/voltha-scale-multi-stack.groovy'
           pipeline-branch: 'master'
           time-trigger: "H H/4 * * *"
           disable-job: true
@@ -910,7 +910,7 @@
       # LWC pipeline
       - 'voltha-scale-measurements':
           name: 'voltha-scale-measurements-lwc-dt-512'
-          pipeline-script: 'voltha/master/voltha-scale-lwc-test.groovy'
+          pipeline-script: 'voltha/voltha-scale-lwc-test.groovy'
           pipeline-branch: 'master'
           build-node: 'berlin-community-pod-2'
           time-trigger: "H H * * *"
@@ -930,7 +930,7 @@
 
       - 'voltha-scale-measurements':
           name: 'voltha-scale-measurements-lwc-dt-256'
-          pipeline-script: 'voltha/master/voltha-scale-lwc-test.groovy'
+          pipeline-script: 'voltha/voltha-scale-lwc-test.groovy'
           pipeline-branch: 'master'
           build-node: 'berlin-community-pod-2'
           time-trigger: "H H * * *"
@@ -1214,7 +1214,7 @@
           jenkins-ssh-credential: '{jenkins-ssh-credential}'
 
     # default values
-    pipeline-script: 'voltha/master/voltha-scale-test.groovy'
+    pipeline-script: 'voltha/voltha-scale-test.groovy'
     pipeline-branch: 'master'
     release: master