Bug #11132, reverted bug-fix, it introduces another bug. Ndbd's may get the same nodeid

In 4.1 the connection to the management server _must_ stay, that is how we
ensure that the nodeids are reserved correctly

ndb/src/common/mgmcommon/ConfigRetriever.cpp

@@ -131,16 +131,14 @@ ConfigRetriever::getConfig() {
 }
 
 ndb_mgm_configuration *
-ConfigRetriever::getConfig(NdbMgmHandle m_handle){
-  
+ConfigRetriever::getConfig(NdbMgmHandle m_handle)
+{
   ndb_mgm_configuration * conf = ndb_mgm_get_configuration(m_handle,m_version);
-  if(conf == 0){
+  if(conf == 0)
+  {
     setError(CR_ERROR, ndb_mgm_get_latest_error_desc(m_handle));
     return 0;
   }
-
-  ndb_mgm_disconnect(m_handle);
-
   return conf;
 }