Removed useless init py file

From a discussion in 53091 it looks like that aliases are actually bad practice and that we only potentially alias for common pre/postIncludes bot not really for regular configurations. Also, the __init__.py is not needed in python3.

The correct syntax for post including is actually Package.Module.Function. This means that the post include command would be now (e.g.) ActsTrkAnalysis.ActsTrkAnalysisConfig.ActsTrkClusterAnalysisCfg

@ncalace do you have a strong opinion for keeping this file, or is this change ok for you?