code: public Task removeDatastoreEx_Task(Datastore[] datastore) throws HostConfigFault, RuntimeFault, RemoteException {
          ManagedObjectReference taskMor = getVimService().removeDatastoreEx_Task(getMOR(), MorUtil.createMORs(datastore));
          return new Task(getServerConnection(), taskMor);
      }
docs: Remove one or more datastores. This is an asynchronous, batch operation of removeDatastore. Please see
  {@link #removeDatastore(Datastore) RemoveDatastore} for operational details. Note: This API currently supports
  removal of only NFS datastores.
  
  @param datastore Each element specifies one datastore to be removed.
  @return Task to monitor
  @throws HostConfigFault
  @throws RuntimeFault
  @throws RemoteException