TrkExTools: Remove overly verbose log output

With the migration to private tools, we have now more than 1000 instances of the basic tracking tools like EnergyLossUpdator, MultipleScatteringUpdator and Navigator. Each of these instances used to write an INFO message on initialize and finalize, inflating the log-file with rather useless information. This MR removes these log lines and thus reduced the length of the q431-RAWtoESD log by 8683 lines.

Side remark: The memory overhead of these tool-instances is rather small (guesstimate less than 1kByte/instance), so there is no immediate performance problem. Whether we really need that many instances is IMHO still a question worth asking.