Remove use of L0Conf

L0Conf will be obsoleted and is not needed in DaVinci options. Removed from DaVinci-Example.py and options run in DaVinciTests.

Need OK from @dfazzini

DaVinciTests/tests/options/PID/DaVinci-DST-ANNPID-Upgrade-Test.py

@@ -30,9 +30,6 @@ DaVinci().HistogramFile = "dst-annpid.root"
 
 ########################################################################
 
-from Configurables import L0Conf
-L0Conf().EnsureKnownTCK=False
-
 from Configurables import ANNGlobalPID__ChargedProtoANNPIDMoni
 DaVinci().UserAlgorithms += [ ANNGlobalPID__ChargedProtoANNPIDMoni("ANNPIDMoni") ]