Remove noisy log messages

app/services/vns/engine.rb

@@ -28,10 +28,7 @@ module VNS
       @best_solution = @initial_solution
       @best_score = @target_function.call(@best_solution)
 
-      puts "Initial score: #{@best_score.to_f}"
-
       self.class.sequence(@perturbations).each do |perturbation|
-        puts "Running perturbation: #{perturbation.name}"
         optimize(perturbation.new(@best_solution))
       end
 
@@ -48,8 +45,6 @@ module VNS
         @best_solution = alternative_solution.deep_dup
         @best_score = score
 
-        puts "New lowest score: #{@best_score.to_f}"
-
         return optimize(perturbation.class.new(@best_solution))
       end
     end