Remove some unused distributor signals (#8216)

Removes the `user_joined_room` and stops calling it since there are no observers.

Also cleans-up some other unused signals and related code.

1 files changed, 0 insertions, 4 deletions

diff --git a/synapse/handlers/events.py b/synapse/handlers/events.py

index b05e32f457..fdce54c5c3 100644
--- a/synapse/handlers/events.py
+++ b/synapse/handlers/events.py
@@ -39,10 +39,6 @@ class EventStreamHandler(BaseHandler):
     def __init__(self, hs: "HomeServer"):
         super(EventStreamHandler, self).__init__(hs)
 
-        self.distributor = hs.get_distributor()
-        self.distributor.declare("started_user_eventstream")
-        self.distributor.declare("stopped_user_eventstream")
-
         self.clock = hs.get_clock()
 
         self.notifier = hs.get_notifier()