diff --git a/plone/app/discussion/browser/controlpanel.py b/plone/app/discussion/browser/controlpanel.py
index 328bfec..99c2b9e 100644
--- a/plone/app/discussion/browser/controlpanel.py
+++ b/plone/app/discussion/browser/controlpanel.py
@@ -1,7 +1,4 @@
-from Products.Five.browser import BrowserView
-
-from zope.component import queryUtility
-from plone.registry.interfaces import IRegistry
+# -*- coding: utf-8 -*-
 
 from plone.app.registry.browser import controlpanel
 
diff --git a/plone/app/discussion/browser/validator.py b/plone/app/discussion/browser/validator.py
index 063242f..45043f5 100644
--- a/plone/app/discussion/browser/validator.py
+++ b/plone/app/discussion/browser/validator.py
@@ -47,8 +47,6 @@ class CaptchaValidator(validator.SimpleFieldValidator):
     def validate(self, value):
         super(CaptchaValidator, self).validate(value)
 
-        data = self.request.form
-
         registry = queryUtility(IRegistry)
         settings = registry.forInterface(IDiscussionSettings)
 
@@ -56,7 +54,7 @@ class CaptchaValidator(validator.SimpleFieldValidator):
             captcha = getMultiAdapter((aq_inner(self.context), self.request), 
                                       name=settings.captcha)
             if not captcha.verify(input=value):
-                 raise WrongCaptchaCode
+                raise WrongCaptchaCode
             else:
                 return True