Revert "temporary switch to hardware slaves"

This reverts commit aa7b43a301db1a255c84ae9224cb4ae0ba315ca1.

Change-Id: Icce80cc3d2a797f2c27566311c43501715b2fcc4
diff --git a/test-salt-formulas-pipeline.groovy b/test-salt-formulas-pipeline.groovy
index b4c3451..088a744 100644
--- a/test-salt-formulas-pipeline.groovy
+++ b/test-salt-formulas-pipeline.groovy
@@ -13,8 +13,7 @@
 def gerritRef = env.GERRIT_REFSPEC ?: null
 def defaultGitRef = env.DEFAULT_GIT_REF ?: null
 def defaultGitUrl = env.DEFAULT_GIT_URL ?: null
-// def slaveNode = env.SLAVE_NODE ?: 'python&&docker'
-def slaveNode = env.SLAVE_NODE ?: 'hardware'
+def slaveNode = env.SLAVE_NODE ?: 'virtual'
 def saltVersion = env.SALT_VERSION ?: ""
 def dockerLib = new com.mirantis.mk.Docker()