如何删除WebLogic 11g的域 How to remove the weblogic domain?
备忘：
1. delete entry in WL_HOME/common/nodemanager/nodemanager.domains
2. delete entry in FMW_HOME/domain-registry.xml
3. delete folder under FMW_HOME/user_projects/domains
4. delete folder under FMW_HOME/user_projects/applicatoins
