message: valgrind : remove duplicate BCLog::Logger suppression
  This was added in but is identical to the supression above.
diff: ...
  fun:_ZN5BCLog6Logger12StartLoggingEv
  }
  -{
  - Suppress BCLog::Logger::StartLogging() still reachable memory warning
  - Memcheck:Leak
  - match-leak-kinds: reachable
  - fun:malloc
  - ...
  - fun:_ZN5BCLog6Logger12StartLoggingEv
  -}
  