diff -r 7276f1c89ddd -r 9d88e1177c35 cubicweb/etwist/request.py
--- a/cubicweb/etwist/request.py	Thu Mar 21 12:05:30 2019 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,58 +0,0 @@
-# copyright 2003-2016 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
-# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
-#
-# This file is part of CubicWeb.
-#
-# CubicWeb is free software: you can redistribute it and/or modify it under the
-# terms of the GNU Lesser General Public License as published by the Free
-# Software Foundation, either version 2.1 of the License, or (at your option)
-# any later version.
-#
-# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
-# details.
-#
-# You should have received a copy of the GNU Lesser General Public License along
-# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
-"""Twisted request handler for CubicWeb"""
-
-from six import text_type
-
-from cubicweb.web.request import CubicWebRequestBase
-
-
-class CubicWebTwistedRequestAdapter(CubicWebRequestBase):
-    """ from twisted .req to cubicweb .form
-    req.files are put into .form[<filefield>]
-    """
-    def __init__(self, req, vreg):
-        self._twreq = req
-        super(CubicWebTwistedRequestAdapter, self).__init__(
-            vreg, req.args, headers=req.received_headers)
-        for key, name_stream_list in req.files.items():
-            for name, stream in name_stream_list:
-                if name is not None:
-                    name = text_type(name, self.encoding)
-                self.form.setdefault(key, []).append((name, stream))
-            # 3.16.4 backward compat
-            if len(self.form[key]) == 1:
-                self.form[key] = self.form[key][0]
-        self.content = self._twreq.content  # stream
-
-    def http_method(self):
-        """returns 'POST', 'GET', 'HEAD', etc."""
-        return self._twreq.method
-
-    def relative_path(self, includeparams=True):
-        """return the normalized path of the request (ie at least relative to
-        the instance's root, but some other normalization may be needed so that
-        the returned path may be used to compare to generated urls
-
-        :param includeparams:
-           boolean indicating if GET form parameters should be kept in the path
-        """
-        path = self._twreq.uri[1:]  # remove the root '/'
-        if not includeparams:
-            path = path.split('?', 1)[0]
-        return path