init_conc argument with `Replicate()` is redundant

[jmrohwer]

The init method signature for the Replicate() class has an argument init_conc:

class Replicate(EnzymeMLBase):

    def __init__(
        self,
        replica,
        reactant,
        type_,
        data_unit,
        time_unit,
        reaction=None,
        measurement="unspecified",
        init_conc="NONE",
        data=None,
        time=None,
        isCalculated=False,
        uri=None,
        creatorId=None
    ):

This is, however, redundant and should be removed in my opinion to avoid confusion.

• The Measurement() already has an assigned initConc via this argument of the addData() method. (Also note inconsistency of initConc vs. init_conc.)
• All replicates should have the same initial concentrations as the measurement, otherwise they would not be replicates. So this should only be specified once (in the Measurement).
• The init_conc entered via the Replicate() class is not stored in the XML, and this information is thus not round-trippable.

[JR-1991]

Thanks for pointing this out! Indeed the init_conc argument is redundant now regarding the addition of the new Measurement class. The argument and all corresponding methods were removed in commit e3732e6.