diff --git a/src/allmydata/web/common.py b/src/allmydata/web/common.py
index 4a2bc2c3c..abdf4e08a 100644
--- a/src/allmydata/web/common.py
+++ b/src/allmydata/web/common.py
@@ -6,7 +6,6 @@ from twisted.web import http, server, resource, template
 from twisted.python import log
 from twisted.python.failure import Failure
 from nevow import loaders, appserver
-from nevow.rend import Page
 from nevow.inevow import IRequest
 from nevow.util import resource_filename
 from allmydata import blacklist
@@ -333,62 +332,6 @@ class NeedOperationHandleError(WebError):
     pass
 
 
-class MultiFormatPage(Page):
-    """
-    ```MultiFormatPage`` is a ``rend.Page`` that can be rendered in a number
-    of different formats.
-
-    Rendered format is controlled by a query argument (given by
-    ``self.formatArgument``).  Different resources may support different
-    formats but ``json`` is a pretty common one.
-    """
-    formatArgument = "t"
-    formatDefault = None
-
-    def renderHTTP(self, ctx):
-        """
-        Dispatch to a renderer for a particular format, as selected by a query
-        argument.
-
-        A renderer for the format given by the query argument matching
-        ``formatArgument`` will be selected and invoked.  The default ``Page``
-        rendering behavior will be used if no format is selected (either by
-        query arguments or by ``formatDefault``).
-
-        :return: The result of the selected renderer.
-        """
-        req = IRequest(ctx)
-        t = get_arg(req, self.formatArgument, self.formatDefault)
-        renderer = self._get_renderer(t)
-        result = renderer(ctx)
-        return result
-
-
-    def _get_renderer(self, fmt):
-        """
-        Get the renderer for the indicated format.
-
-        :param bytes fmt: The format.  If a method with a prefix of
-            ``render_`` and a suffix of this format (upper-cased) is found, it
-            will be used.
-
-        :return: A callable which takes a Nevow context and renders a
-            response.
-        """
-        if fmt is None:
-            return super(MultiFormatPage, self).renderHTTP
-        try:
-            renderer = getattr(self, "render_{}".format(fmt.upper()))
-        except AttributeError:
-            raise WebError(
-                "Unknown {} value: {!r}".format(self.formatArgument, fmt),
-            )
-        else:
-            if renderer is None:
-                return super(MultiFormatPage, self).renderHTTP
-            return lambda ctx: renderer(IRequest(ctx))
-
-
 class SlotsSequenceElement(template.Element):
     """
     ``SlotsSequenceElement` is a minimal port of nevow's sequence renderer for