Remove some useless homeserver.yaml configuration

roles/matrix-synapse/templates/synapse/homeserver.yaml.j2

@@ -66,35 +66,6 @@ acme:
 #
 no_tls: {{ matrix_synapse_no_tls|to_json }}
 
-# List of allowed TLS fingerprints for this server to publish along
-# with the signing keys for this server. Other matrix servers that
-# make HTTPS requests to this server will check that the TLS
-# certificates returned by this server match one of the fingerprints.
-#
-# Synapse automatically adds the fingerprint of its own certificate
-# to the list. So if federation traffic is handled directly by synapse
-# then no modification to the list is required.
-#
-# If synapse is run behind a load balancer that handles the TLS then it
-# will be necessary to add the fingerprints of the certificates used by
-# the loadbalancers to this list if they are different to the one
-# synapse is using.
-#
-# Homeservers are permitted to cache the list of TLS fingerprints
-# returned in the key responses up to the "valid_until_ts" returned in
-# key. It may be necessary to publish the fingerprints of a new
-# certificate and wait until the "valid_until_ts" of the previous key
-# responses have passed before deploying it.
-#
-# You can calculate a fingerprint from a given TLS listener via:
-# openssl s_client -connect $host:$port < /dev/null 2> /dev/null |
-#   openssl x509 -outform DER | openssl sha256 -binary | base64 | tr -d '='
-# or by checking matrix.org/federationtester/api/report?server_name=$host
-#
-tls_fingerprints: []
-# tls_fingerprints: [{"sha256": "<base64_encoded_sha256_fingerprint>"}]
-
-
 ## Server ##
 
 # The domain name of the server, with optional explicit port.