Remove check that CountHepMC == nEventsPerJob

Currently in the logParser we check that CountHepMC == nEventsPerJob
where CountHepMC is extracted from the following line:

11:06:58 CountHepMC           INFO Events passing all checks and written = 2

and nEventsPerJob is taken from

10:47:13 Py:Gen_tf            INFO            .nEventsPerJob = 200   	# (Integer) number of input events per job. Possible values: value >= 0

I have a vague recollection that this helped to identify some cases for MG where the multiplier was not adjusting for the generation efficiency properly and the transform still managed to run, however I do not exactly remember the cases and I would not be able to reproduce it.

Since this check has been a source of some headaches recently we would propose to remove it unless someone thinks that this is necessary.

Tagging MG experts: @zmarshal @mcfayden @hmildner @svonbudd and @ewelina @lcorpe in case you want to discuss in the git meeting (also @fsiegert @cgutscho with who we discussed this already)