diff --git a/app/controllers/concerns/submission_scoring.rb b/app/controllers/concerns/submission_scoring.rb
index 2b535e0d..279e7a05 100644
--- a/app/controllers/concerns/submission_scoring.rb
+++ b/app/controllers/concerns/submission_scoring.rb
@@ -92,13 +92,5 @@ module SubmissionScoring
         output.except!(:error_messages, :count, :failed, :filename, :message, :passed, :stderr, :stdout)
       end
     end
-
-    # Return all test results except for those of a linter if not allowed
-    show_linter = Python20CourseWeek.show_linter? submission.exercise, submission.user_id
-    outputs&.reject do |output|
-      next if show_linter || output.blank?
-
-      output[:file_role] == 'teacher_defined_linter'
-    end
   end
 end
diff --git a/app/controllers/exercises_controller.rb b/app/controllers/exercises_controller.rb
index 44db28df..f4d3c9dd 100644
--- a/app/controllers/exercises_controller.rb
+++ b/app/controllers/exercises_controller.rb
@@ -298,11 +298,6 @@ class ExercisesController < ApplicationController
                else
                  current_user.id
                end
-
-    # Tips are collected and set with set_available_tips.
-    # Delete tips for those users who should not see them.
-    # Doing this here is beneficial because all other (admin) routes still work.
-    @tips = nil unless Python20CourseWeek.show_tips? @exercise, current_user.id
   end
 
   def set_course_token
diff --git a/lib/python20_course_week.rb b/lib/python20_course_week.rb
deleted file mode 100644
index 11afd4a1..00000000
--- a/lib/python20_course_week.rb
+++ /dev/null
@@ -1,44 +0,0 @@
-# frozen_string_literal: true
-
-class Python20CourseWeek
-
-  def self.get_for(exercise)
-    case exercise.title
-    when /Python20 Aufgabe 1/
-      1
-    when /Python20 Aufgabe 2/
-      2
-    when /Python20 Aufgabe 3.1/
-      nil # Explicitly enable everything (linter + tips if available)!
-    when /Python20 Aufgabe 3.2/
-      3
-    when /Python20 Aufgabe 3.3/
-      3
-    when /Python20 Aufgabe 3.4/
-      3
-    when /Python20 Aufgabe 4/
-      4
-    when /Python20 Snake/
-      4
-    else
-      # Not part of the Python20 course
-      nil
-    end
-  end
-
-  def self.show_tips?(exercise, user_id)
-    week = get_for(exercise)
-    return true if week.nil? # Exercise is not part of the experiment
-
-    user_group = UserGroupSeparator.get_tips_group(user_id)
-    [1, 2].include?(week) && user_group == :show_tips
-  end
-
-  def self.show_linter?(exercise, user_id)
-    week = get_for(exercise)
-    return true if week.nil? # Exercise is not part of the experiment
-
-    user_group = UserGroupSeparator.get_linter_group(user_id)
-    [3].include?(week) && user_group == :show_linter
-  end
-end
diff --git a/lib/user_group_separator.rb b/lib/user_group_separator.rb
deleted file mode 100644
index f1fef355..00000000
--- a/lib/user_group_separator.rb
+++ /dev/null
@@ -1,30 +0,0 @@
-# frozen_string_literal: true
-
-class UserGroupSeparator
-
-  # Different user groups for Python20 course based on last digit of the user_id
-  # 0: show_tips && no_linter
-  # 1: no_tips && show_linter
-  # 2: show_tips && show_linter
-  # 3: no_tips && no_linter
-
-  # separates user into 50% no tips, 50% with tips
-  def self.get_tips_group(user_id)
-    user_group = user_id % 4 # => 0, 1, 2, 3
-    if [0, 2].include?(user_group)
-      :show_tips
-    else # [1, 3].include?(user_group)
-      :no_tips
-    end
-  end
-
-  # separates user into 50% with linter, 50% without linter
-  def self.get_linter_group(user_id)
-    user_group = user_id % 4 # => 0, 1, 2, 3
-    if [1, 2].include?(user_group)
-      :show_linter
-    else # [0, 3].include?(user_group)
-      :no_linter
-    end
-  end
-end