Fixing att build pipeline

Change-Id: I08797f04074af3efa8eebc9ca35ee082fbd4f33d
diff --git a/Jenkinsfile-attworkflow-build b/Jenkinsfile-attworkflow-build
index 14789a8..9c70e37 100644
--- a/Jenkinsfile-attworkflow-build
+++ b/Jenkinsfile-attworkflow-build
@@ -16,6 +16,7 @@
     timeout (100) {
         try {
             stage ("Parse deployment configuration file") {
+                sh returnStdout: true, script: "rm -rf ${configBaseDir}"
                 sh returnStdout: true, script: "git clone -b ${branch} ${cordRepoUrl}/${configBaseDir}"
                 deployment_config = readYaml file: "${configBaseDir}/${configDeploymentDir}/${configFileName}.yaml"
             }