matrix: Disable the expensive presence tracking

roles/matrix/templates/homeserver.yaml.j2

@@ -60,7 +60,7 @@ public_baseurl: https://{{ matrix_domain }}/
 
 # Set to false to disable presence tracking on this homeserver.
 #
-#use_presence: false
+use_presence: false
 
 # Whether to require authentication to retrieve profile data (avatars,
 # display names) of other users through the client API. Defaults to

roles/matrix/templates/irc-bridge.yaml.j2

@@ -30,7 +30,7 @@ homeserver:
   # Should presence be enabled for matrix clients on this bridge. If disabled on the
   # homeserver then it should also be disabled here to avoid excess traffic.
   # Default: true
-  enablePresence: true
+  enablePresence: false
 
   # Which port should the appservice bind to. Takes priority over the one provided in the
   # command line! Optional.