Don't include counts in GET room_keys/version response

Author: Fizzadar

synapse/handlers/e2e_room_keys.py

@@ -369,7 +369,9 @@ async def get_version_info(
                 else:
                     raise
 
-            res["count"] = await self.store.count_e2e_room_keys(user_id, res["version"])
+            # # Beeper: Clients don't care, save some time
+            # res["count"] = await self.store.count_e2e_room_keys(user_id, res["version"])
+            res["count"] = 0
             res["etag"] = str(res["etag"])
             return res