Suppress warning.
--- a/matrix-synapse/templates/homeserver.yaml.j2 Tue Jun 09 10:15:03 2020 -0500
+++ b/matrix-synapse/templates/homeserver.yaml.j2 Tue Jun 09 14:39:54 2020 -0500
@@ -1305,7 +1305,7 @@
# Uncomment the following to disable the warning that is emitted when the
# trusted_key_servers include 'matrix.org'. See above.
#
-#suppress_key_server_warning: true
+suppress_key_server_warning: true
# The signing keys to use when acting as a trusted key server. If not specified
# defaults to the server signing key.