Code cleanup - remove experimental score_variant setting

modelling/pymod/_closegaps.py

@@ -911,11 +911,6 @@ def FillLoopsByMonteCarlo(mhandle, torsion_sampler, max_loops_to_search=6,
     if not IsBackboneScoringSetUp(mhandle):
         SetupDefaultBackboneScoring(mhandle)
 
-    # disable AllAtom scoring here
-    if score_variant == 3:
-        score_variant = 0
-        ost.LogInfo("AllAtom scoring disabled for FillLoopsByMonteCarlo.")
-
     # point to the current gap
     gap_idx = 0