Improving syntax

Jenkinsfile

@@ -1,6 +1,10 @@
 node('packer') {
   currentBuild.result = "SUCCESS"
 
+  stage 'Checkout'
+
+  checkout scm
+
   stage 'Appliance build'
   echo "My Branch is: ${env.BRANCH_NAME}"
 
@@ -38,25 +42,21 @@ def performBuild(String project){
       }
     }
 
-    stage 'Checkout'
-
-    checkout scm
-
     stage 'Acquire ansible-playbooks'
 
     sh 'mkdir -p ansible-playbooks'
     dir('ansible-playbooks'){
       git([ url: "https://github.internet2.edu/docker/ansible-playbooks.git",
-      branch: "{{project}}-production", credentialsId: "jenkins-github-access-token" ])
+      branch: "${project}-production", credentialsId: "jenkins-github-access-token" ])
     }
 
     stage 'Validate'
 
-    sh "/usr/local/bin/packer validate {{project}}-appliance.json"
+    sh "/usr/local/bin/packer validate ${project}-appliance.json"
 
     stage 'Build Appliance'
 
-    sh "/usr/local/bin/packer build {{project}}-appliance.json"
+    sh "/usr/local/bin/packer build ${project}-appliance.json"
 
     stage 'Sync appliances to S3 bucket'
 
@@ -77,67 +77,6 @@ def performBuild(String project){
   catch (err) {
     handleError("BUILD ERROR: There was a problem with ${project} Appliance. ${env.JOB_NAME} ${env.BUILD_NUMBER} (<${env.BUILD_URL} |Open>) \n\n ${err}")
   }
-} else if (BRANCH_TEST=="grouper-production") {
-  node('packer') {
-    currentBuild.result = "SUCCESS"
-
-    try {
-      stage 'Cleanup & Setup '
-        sh 'rm -rf output-grouper-*'
-        sh 'rm -rf "/Users/levvel/VirtualBox VMs/grouper-appliance-*"'
-        sh 'rm  -rf builds'
-        sh 'mkdir -p builds'
-
-        withCredentials([[$class: 'FileBinding', credentialsId: 'our-aws-config', variable: 'FILE']]) {
-          ws {
-            sh 'mkdir -p ~/.aws'
-            sh 'cp $FILE ~/.aws/config'
-          }
-        }
-
-        withCredentials([[$class: 'FileBinding', credentialsId: 'our-aws-credentials', variable: 'FILE']]) {
-          ws {
-            sh 'mkdir -p ~/.aws'
-            sh 'cp $FILE ~/.aws/credentials'
-          }
-        }
-
-      stage 'Checkout'
-
-        checkout scm
-
-      stage 'Acquire ansible-playbooks'
-
-        sh 'mkdir -p ansible-playbooks'
-        dir('ansible-playbooks'){
-          git([ url: "https://github.internet2.edu/docker/ansible-playbooks.git",
-              branch: "grouper-production", credentialsId: "jenkins-github-access-token" ])
-        }
-
-      stage 'Validate'
-
-        sh '/usr/local/bin/packer validate grouper-appliance.json'
-
-      stage 'Build Appliance - Grouper'
-
-        sh '/usr/local/bin/packer build grouper-appliance.json'
-
-      stage 'Sync appliances to S3 bucket'
-
-         sh 'aws s3 sync builds s3://internet2-appliance-us-west-1'
-
-      slackSend color: 'good', message: "BUILD SUCCESS: Comanage Appliance build success. ${env.JOB_NAME} ${env.BUILD_NUMBER} (<${env.BUILD_URL} |Open>)"
-
-    }
-
-    catch (err) {
-      currentBuild.result = "FAILURE"
-
-      slackSend color: 'danger', message: "BUILD ERROR: There was a problem with Comanage Appliance. ${env.JOB_NAME} ${env.BUILD_NUMBER} (<${env.BUILD_URL} |Open>) \n\n ${err}"
-
-      throw err
-    }
-  }
 }
 
 def handleError(String message){