Merge commit 'f43c66d23' into anoa/dinsic_release_1_21_x

* commit 'f43c66d23':
  Add support for running Complement against the local checkout (#8317)
  Filter out appservices from mau count (#8404)
  Only assert valid next_link params when provided (#8417)
  Add metrics to track success/otherwise of replication requests (#8406)
  Fix handling of connection timeouts in outgoing http requests (#8400)
  Changelog
  Don't check whether a 3pid is allowed to register during password reset
  Add checks for postgres sequence consistency (#8402)
  Create a mechanism for marking tests "logcontext clean" (#8399)
  Add `ui_auth_sessions_ips` table to `synapse_port_db` ignore list (#8410)
  A pair of tiny cleanups in the federation request code. (#8401)
  typo

1 files changed, 2 insertions, 15 deletions

diff --git a/synapse/http/__init__.py b/synapse/http/__init__.py

index 8eb3638591..59b01b812c 100644
--- a/synapse/http/__init__.py
+++ b/synapse/http/__init__.py
@@ -16,8 +16,6 @@
 import re
 
 from twisted.internet import task
-from twisted.internet.defer import CancelledError
-from twisted.python import failure
 from twisted.web.client import FileBodyProducer
 
 from synapse.api.errors import SynapseError
@@ -26,19 +24,8 @@ from synapse.api.errors import SynapseError
 class RequestTimedOutError(SynapseError):
     """Exception representing timeout of an outbound request"""
 
-    def __init__(self):
-        super().__init__(504, "Timed out")
-
-
-def cancelled_to_request_timed_out_error(value, timeout):
-    """Turns CancelledErrors into RequestTimedOutErrors.
-
-    For use with async.add_timeout_to_deferred
-    """
-    if isinstance(value, failure.Failure):
-        value.trap(CancelledError)
-        raise RequestTimedOutError()
-    return value
+    def __init__(self, msg):
+        super().__init__(504, msg)
 
 
 ACCESS_TOKEN_RE = re.compile(r"(\?.*access(_|%5[Ff])token=)[^&]*(.*)$")