fix: remove redundant flag-adding

Author: koebi

ORStools/proc/isochrones_point_proc.py

@@ -83,10 +83,6 @@ def __init__(self):
             ),
         ]
 
-        # Set flag of smoothness parameters to advanced
-        smooth_param = next((i for i in self.PARAMETERS if i.name() == self.IN_SMOOTHING), None)
-        smooth_param.setFlags(smooth_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
-
     # Save some important references
     # TODO bad style, refactor
     isochrones = isochrones_core.Isochrones()