Removed some dead code, and old/bad constructs from the HttpResponse classes.
Removed some dead code, and old/bad constructs from the HttpResponse classes.

--HG--
extra : convert_revision : svn%3Abcc190cf-cafb-0310-a4f2-bffc1f526a37/django/trunk%4015781

adieu/django-nonrel,adieu/django-nonrel,adieu/django-nonrel