Remove outdated FIXME.

Author: Lukasa

hyper/http11/response.py

@@ -132,7 +132,6 @@ def read(self, amt=None, decode_content=True):
 
             # If we got an empty read, but were expecting more, the remote end
             # has hung up. Raise an exception.
-            # FIXME: Real exception, not RuntimeError
             if not chunk:
                 self.close()
                 raise ConnectionResetError("Remote end hung up!")