CI: Update to latest JJB version, fix code

The latest version of JJB is more restrictive, so several non-existent
jobs that were defined without error before needed to be removed from
all job definitions.

Signed-off-by: Eric Ball <eball@linuxfoundation.org>
Change-Id: I8722fa5d6edfa778183ddb9bbee5c22db4c830d8
diff --git a/jjb/voltha-scale.yaml b/jjb/voltha-scale.yaml
index 6b41b15..fddf00c 100644
--- a/jjb/voltha-scale.yaml
+++ b/jjb/voltha-scale.yaml
@@ -952,7 +952,7 @@
 # list of parameters for the VOLTHA Jobs,
 # used as anchor so that can be shared across multiple jobs
 # to use in a job: `parameters: *voltha-scale-job-parameters`
-- voltha-scale-job-parameters: &voltha-scale-job-parameters
+- _voltha-scale-job-parameters: &voltha-scale-job-parameters
     name: voltha-scale-job-parameters
     parameters:
       - string: