Delete unused LTI params from session

app/controllers/application_controller.rb

@@ -67,7 +67,6 @@ class ApplicationController < ActionController::Base
 
       # All external users are logged in "manually"
       session[:external_user_id] = token.user.id
-      session.delete(:lti_parameters_id)
       token.user
     end
   end

app/controllers/concerns/lti.rb

@@ -110,7 +110,6 @@ module Lti
                 else
                   proxy_exercise.get_matching_exercise(current_user)
                 end
-    session[:lti_exercise_id] = @exercise.id if @exercise
     refuse_lti_launch(message: t('sessions.oauth.invalid_exercise_token')) unless @exercise
   end
 
@@ -242,7 +241,6 @@ module Lti
     @lti_parameters = lti_parameters
 
     session[:external_user_id] = current_user.id
-    session[:lti_parameters_id] = lti_parameters.id
   end
 
   private :store_lti_session_data

app/controllers/concerns/redirect_behavior.rb

@@ -124,9 +124,7 @@ module RedirectBehavior
       session: session.to_hash,
       submission: @submission.inspect,
       params: params.as_json,
-      current_user:,
-      lti_exercise_id: session[:lti_exercise_id],
-      lti_parameters_id: session[:lti_parameters_id]
+      current_user:
     )
 
     path = lti_return_path(submission_id: @submission.id)