Remove dublet lines

Author: agnetemoos

admin_site/os2borgerpc_admin/settings.py

@@ -313,6 +313,3 @@
 MARKDOWNX_MEDIA_PATH = datetime.now().strftime("changelog-images/%Y/%m/%d")
 
 FORM_RENDERER = "django.forms.renderers.DjangoDivFormRenderer"
-
-USE_X_FORWARDED_HOST = True
-SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')