Removed the checking of MODEL_LIST_MMQ, and spin.isotope from optimisation.back_calc_r2eff(), since this check is already covered.
Bug #22754 (https://gna.org/bugs/index.php?22754): The minimise.calculate() does not calculate chi2 value for clustered residues.
Authored by: tlinnet 2014-10-06
Parent: [r26170]
Child: [r26172]
