Revert "Pass DockerContainerName to tests"

This reverts commit 48930588a59f0965bcbd5bcd0569e17f0b9df7ed.

Reason for revert: <INSERT REASONING HERE>

Change-Id: I69f4f9bc0a32f34c34ede45c813b96f87a2d94f1
diff --git a/test-cookiecutter-reclass.groovy b/test-cookiecutter-reclass.groovy
index 5bf0cdc..ba05406 100644
--- a/test-cookiecutter-reclass.groovy
+++ b/test-cookiecutter-reclass.groovy
@@ -96,8 +96,7 @@
     while (nbTry < 5) {
         nbTry++
         try {
-            def DockerCname = "${env.JOB_NAME.toLowerCase()}_${env.BUILD_TAG.toLowerCase()}"
-            saltModelTesting.setupAndTestNode("cfg01.${clusterDomain}", clusterName, EXTRA_FORMULAS, testEnv, "pkg", DISTRIB_REVISION, dockerContainerName=DockerCname)
+            saltModelTesting.setupAndTestNode("cfg01.${clusterDomain}", clusterName, EXTRA_FORMULAS, testEnv, "pkg", DISTRIB_REVISION)
             break
         } catch (Exception e) {
             if (e.getMessage() == "script returned exit code 124") {