Fix test for prompt == "none"

app/controllers/api/openid_connect/authorizations_controller.rb

@@ -202,8 +202,6 @@ module Api
         redirect_to params[:redirect_uri] + "?" + redirect_fragment
       end
 
-      private
-
       def auth_user_unless_prompt_none!
         if params[:prompt] == "none" && !user_signed_in?
           render json: {error: "login_required",

spec/controllers/api/openid_connect/authorizations_controller_spec.rb

@@ -8,7 +8,6 @@ describe Api::OpenidConnect::AuthorizationsController, type: :controller do
 
   before do
     sign_in :user, alice
-    allow(@controller).to receive(:current_user).and_return(alice)
   end
 
   describe "#new" do