diff --git a/rest_framework/request.py b/rest_framework/request.py
index ca70b49e7..f90b841d0 100644
--- a/rest_framework/request.py
+++ b/rest_framework/request.py
@@ -295,8 +295,6 @@ class Request(object):
 
         if content_length == 0:
             self._stream = None
-        elif hasattr(self._request, 'read'):
-            self._stream = self._request
         else:
             self._stream = BytesIO(self.raw_post_data)