Remove redirect URL from Form

Redirecting is not the responsibility of the form, but of the
controller.

src/Form.php

@@ -39,9 +39,6 @@ class Form extends BaseHtmlElement
     /** @var ServerRequestInterface The server request being processed */
     protected $request;
 
-    /** @var string */
-    protected $redirectUrl;
-
     protected $tag = 'form';
 
     /**
@@ -150,30 +147,6 @@ public function getRequest()
         return $this->request;
     }
 
-    /**
-     * Get the url to redirect to on success
-     *
-     * @return string
-     */
-    public function getRedirectUrl()
-    {
-        return $this->redirectUrl;
-    }
-
-    /**
-     * Set the url to redirect to on success
-     *
-     * @param string $url
-     *
-     * @return $this
-     */
-    public function setRedirectUrl($url)
-    {
-        $this->redirectUrl = $url;
-
-        return $this;
-    }
-
     /**
      * @param ServerRequestInterface $request
      *
@@ -368,7 +341,6 @@ protected function onError()
 
     protected function onSuccess(FormSubmitElement $submitElement = null)
     {
-        // $this->redirectOnSuccess();
     }
 
     protected function onElementRegistered(FormElement $element)