fix: Makes visible the graphs by grade

app/presenters/analyze/graph/students_by_grade.rb

@@ -6,9 +6,9 @@ module Analyze
       include Analyze::Graph::Column::Grade
       attr_reader :grades
 
-      def initialize(grades:)
-        @grades = grades
-      end
+      # def initialize(grades:)
+      #   @grades = grades
+      # end
 
       def to_s
         "Students by Grade"
@@ -52,4 +52,3 @@ module Analyze
     end
   end
 end
-

app/presenters/analyze/presenter.rb

@@ -84,7 +84,7 @@ module Analyze
       @graphs ||= [Analyze::Graph::AllData.new,
                    Analyze::Graph::StudentsAndTeachers.new,
                    Analyze::Graph::StudentsByRace.new(races: selected_races),
-                   Analyze::Graph::StudentsByGrade.new(grades: selected_grades),
+                   Analyze::Graph::StudentsByGrade.new,
                    Analyze::Graph::StudentsByGender.new(genders: selected_genders),
                    Analyze::Graph::StudentsByIncome.new(incomes: selected_incomes),
                    Analyze::Graph::StudentsByEll.new(ells: selected_ells),