diff --git a/docs/usage/configuration/config_documentation.md b/docs/usage/configuration/config_documentation.md
index 257ea4a1a2..e7c606f2e8 100644
--- a/docs/usage/configuration/config_documentation.md
+++ b/docs/usage/configuration/config_documentation.md
@@ -494,7 +494,7 @@ Options for each entry include:
 
 * `bind_addresses` (array|null): A list of local addresses to listen on. The default is "all local interfaces".
 
-* `type` (string): The type of listener. Normally `http`, but other valid options are [`manhole`](../../manhole.md) and [`metrics`](../../metrics-howto.md).
+* `type` (string): The type of listener. Normally `http`, but other valid options are [`manhole`](../../manhole.md).
 
 * `tls` (boolean): Set to true to enable TLS for this listener. Will use the TLS key/cert specified in tls_private_key_path/tls_certificate_path.
 
diff --git a/tests/metrics/test_metrics.py b/tests/metrics/test_metrics.py
index 4db878da72..faf4461cdb 100644
--- a/tests/metrics/test_metrics.py
+++ b/tests/metrics/test_metrics.py
@@ -18,11 +18,8 @@
 # [This file includes modifications made by New Vector Limited]
 #
 #
-from importlib import metadata
 from typing import Dict, Protocol, Tuple
-from unittest.mock import patch
 
-from pkg_resources import parse_version
 from prometheus_client.core import Sample
 
 from synapse.metrics import REGISTRY, InFlightGauge, generate_latest