k-factor: Comment out/remove debug stuff
Revert "Frankenstein refit settings"

This reverts commit 2ade4637b203717c5e094d878915ba173f91bbcb.

The rationale is: we see a bias in the mass resolution for the emulated
reco of the order of 20 MeV (latest templates show 50 MeV!).  This is
40% of LHCb mass resolution: ~50 MeV.  The k-factor varies by 2-4%.  So
in the worst case it is a 2-4% change in k-factor.  The affected modes
(where the "Ds" is not a real Ds) contribute little to the yields (<5%),
so overall effect should be very small.