docs: def remove_constraint(self,*names):
          """
          Removes constraint from each population
  
          See :func:`vespa.stars.StarPopulation.remove_constraint
  
          """
          for name in names:
              for pop in self.poplist:
                  if name in pop.constraints:
                      pop.remove_constraint(name)
                  else:
                      logging.info('%s model does not have %s constraint' % (pop.model,name))
              if name in self.constraints:
                  self.constraints.remove(name)