Completely remove old hints connected to the execution environment

app/controllers/code_ocean/errors_controller.rb

@@ -10,14 +10,9 @@ module CodeOcean
     def create
       @error = CodeOcean::Error.new(error_params)
       authorize!
-      hint = Whistleblower.new(execution_environment: @error.execution_environment).generate_hint(@error.message)
       respond_to do |format|
         format.json do
-          if hint
-            render(json: {hint: hint})
-          else
-            head (@error.save ? :created : :unprocessable_entity)
-          end
+          head (@error.save ? :created : :unprocessable_entity)
         end
       end
     end

app/controllers/hints_controller.rb

@@ -1,57 +0,0 @@
-class HintsController < ApplicationController
-  include CommonBehavior
-
-  before_action :set_execution_environment
-  before_action :set_hint, only: MEMBER_ACTIONS
-
-  def authorize!
-    authorize(@hint || @hints)
-  end
-  private :authorize!
-
-  def create
-    @hint = Hint.new(hint_params)
-    authorize!
-    create_and_respond(object: @hint, path: proc { execution_environment_hint_path(@execution_environment, @hint) })
-  end
-
-  def destroy
-    destroy_and_respond(object: @hint, path: execution_environment_hints_path(@execution_environment))
-  end
-
-  def edit
-  end
-
-  def hint_params
-    params[:hint].permit(:locale, :message, :name, :regular_expression).merge(execution_environment_id: @execution_environment.id) if params[:hint].present?
-  end
-  private :hint_params
-
-  def index
-    @hints = @execution_environment.hints.order(:name).paginate(page: params[:page])
-    authorize!
-  end
-
-  def new
-    @hint = Hint.new
-    authorize!
-  end
-
-  def set_execution_environment
-    @execution_environment = ExecutionEnvironment.find(params[:execution_environment_id])
-  end
-  private :set_execution_environment
-
-  def set_hint
-    @hint = Hint.find(params[:id])
-    authorize!
-  end
-  private :set_hint
-
-  def show
-  end
-
-  def update
-    update_and_respond(object: @hint, params: hint_params, path: execution_environment_hint_path(@execution_environment, @hint))
-  end
-end

app/controllers/submissions_controller.rb

@@ -128,11 +128,7 @@ class SubmissionsController < ApplicationController
     #   server_sent_event.write({stderr: output[:stderr]}, event: 'output') if output[:stderr]
 
     #   unless output[:stderr].nil?
-    #     if hint = Whistleblower.new(execution_environment: @submission.execution_environment).generate_hint(output[:stderr])
-    #       server_sent_event.write(hint, event: 'hint')
-    #     else
-    #       store_error(output[:stderr])
-    #     end
+    #     store_error(output[:stderr])
     #   end
     # end