Remove a property cleanup call jenkins-ignore

Author: hzhao-github

integration-tests/src/test/java/oracle/kubernetes/operator/ITStickySession.java

@@ -99,8 +99,6 @@ public static void staticUnPrepare() throws Exception {
 
       tearDown(new Object() {}.getClass().getEnclosingClass().getSimpleName());
 
-      // Unset System property for using Voyager
-      System.clearProperty("LB_TYPE");
       logger.info(
           "System Property LB_TYPE is cleaned. LB_TYPE" + " = " + System.getProperty("LB_TYPE"));