Revert "Factor settings data out of SettingsVarsDebugPanel."

This reverts commit 7e8a4e1.

Author: robhudson

debug_toolbar/debug/settings_vars.py

@@ -1,7 +1,9 @@
+from django.conf import settings
 from django.template.loader import render_to_string
+from django.views.debug import get_safe_settings
 from django.utils.translation import ugettext_lazy as _
 from debug_toolbar.panels import DebugPanel
-from debug_toolbar.debug.settings_vars import DebugSettings
+
 
 class SettingsVarsDebugPanel(DebugPanel):
     """
@@ -10,22 +12,18 @@ class SettingsVarsDebugPanel(DebugPanel):
     name = 'SettingsVars'
     has_content = True
 
-    def __init__(self, context={}):
-        super(SettingsVarsDebugPanel, self).__init__(context)
-        self.settings = DebugSettings()
-
     def nav_title(self):
         return _('Settings')
 
     def title(self):
-        return _('Settings from <code>%s</code>') % self.settings.module_name()
+        return _('Settings from <code>%s</code>') % settings.SETTINGS_MODULE
 
     def url(self):
         return ''
 
     def content(self):
         context = self.context.copy()
         context.update({
-            'settings': self.settings.available_settings(),
+            'settings': get_safe_settings(),
         })
         return render_to_string('debug_toolbar/panels/settings_vars.html', context)