Currently, the NOBIAS bandwidth is significantly inflated because of the
inclusion of the Hlt2LumiCounters line. With this change we won't save
the raw data for the events only selected by Hlt2LumiCounters.

The ideal behaviour should be to only compute and save lumi
counters when the NoBias line fires. This will only reduce the bandwidth a
bit more (by around 20%), because the lumi counters are relatively
light.