public void removeRSGroup(String name) throws IOException {
    RemoveRSGroupRequest request = RemoveRSGroupRequest.newBuilder().setRSGroupName(name).build();
    try {
      stub.removeRSGroup(null, request);
    } catch (ServiceException e) {
      throw ProtobufUtil.handleRemoteException(e);
    }
  }
Removes RegionServer group associated with the given name.
hbase-server/src/main/java/org/apache/hadoop/hbase/rsgroup/RSGroupAdminClient.java