remove logic to remove private task registrants if switching to public

Author: ajefts

services/contest_service_facade/src/java/main/com/topcoder/service/facade/contest/ejb/ContestServiceFacadeBean.java

@@ -4437,11 +4437,6 @@ public SoftwareCompetition updateSoftwareContest(TCSubject tcSubject, SoftwareCo
 
                 if (isPrivateProject(contest)){
                     contest.getProjectHeader().setProperty(ProjectPropertyType.RATED_PROJECT_PROPERTY_KEY, "No");
-                }else {
-                    if (oldProject.getProperty(ProjectPropertyType.PRIVATE_PROJECT) != null && oldProject.getProperty(ProjectPropertyType.PRIVATE_PROJECT).equals("1")){
-                        //remove current registrant
-                        Set<Long> preUsers = updatePreRegister(tcSubject, contest, new HashSet<Long>());
-                    }
                 }