No longer using local credentials file

We rely on credhub instead.

concourse/experimental-pipeline.yml

@@ -20,10 +20,14 @@ jobs:
     - get: jvm-launch-utils-git
       trigger: true
     - get: tasks 
-  - task: publish
-    file: tasks/concourse/tasks/npm-publish.yml
-    input_mapping:
-      sources_repo: jvm-launch-utils-git
-    params:
-      npm_token: ((npm_token))
-      sources_dir: nodejs-packages/jvm-launch-utils
+  - task: make-noise
+    config:
+      platform: linux
+      image_resource:
+        type: docker-image
+        source:
+          repository: ubuntu:18.04
+      run:
+        path: echo
+        args:
+        - "Hello world!" 

concourse/set-experimental-pipeline.sh

@@ -4,6 +4,5 @@ branch=`git rev-parse --abbrev-ref HEAD`
 
 fly -t tools set-pipeline \
     --var "branch=${branch}" \
-    --load-vars-from ${HOME}/.sts4-concourse-credentials.yml \
     -p "sts4-experimental-${branch}" \
     -c experimental-pipeline.yml

concourse/set-pipeline.py

@@ -11,7 +11,7 @@ def replace(infile, outfile, findword, replaceword):
 branch = os.popen("git rev-parse --abbrev-ref HEAD").read().strip()
 
 if branch == 'master':
-    os.system('fly -t tools set-pipeline --load-vars-from ${HOME}/git/sts4-concourse-build-credentials/.sts4-concourse-credentials.yml '+
+    os.system('fly -t tools set-pipeline '+
               '      --var "branch=' + branch + '" ' +
               '      -p sts4-'+ branch +' -c pipeline.yml')
 else:
@@ -19,7 +19,7 @@ else:
     replace("pipeline.yml", "pipeline-"+branch+".yml", "snapshot", branch)
     with open(fname, 'r') as fin:
         print fin.read()
-    cmd = ('fly -t tools set-pipeline --load-vars-from ${HOME}/git/sts4-concourse-build-credentials/.sts4-concourse-credentials.yml ' + 
+    cmd = ('fly -t tools set-pipeline ' + 
         '--var "branch=' + branch + '" ' + '-p sts4-' +branch+' -c '+fname)
     print cmd
     os.system(cmd)