docs: remove dummy stage

website/docs/flow/stages/dummy/index.md

@@ -1,7 +0,0 @@
----
-title: Dummy stage
----
-
-This stage is used for development and has no function. It presents the user with a form which requires a single confirmation.
-
-![](dummy.png)

website/sidebars.js

@@ -50,7 +50,6 @@ module.exports = {
                 "flow/stages/authenticator_totp/index",
                 "flow/stages/authenticator_validate/index",
                 "flow/stages/captcha/index",
-                "flow/stages/dummy/index",
                 "flow/stages/email/index",
                 "flow/stages/identification/index",
                 "flow/stages/invitation/index",