diff --git a/dendrite-sample.monolith.yaml b/dendrite-sample.monolith.yaml
index 810221477..e974dbcba 100644
--- a/dendrite-sample.monolith.yaml
+++ b/dendrite-sample.monolith.yaml
@@ -194,10 +194,6 @@ federation_api:
   # last resort.
   prefer_direct_fetch: false
 
-# Configuration for the Key Server (for end-to-end encryption).
-key_server:
-  # There are no configurable options for the key server in a monolith deployment.
-
 # Configuration for the Media API.
 media_api:
   # Storage path for uploaded media. May be relative or absolute.
@@ -232,10 +228,6 @@ mscs:
   #  - msc2836  # (Threading, see https://github.com/matrix-org/matrix-doc/pull/2836)
   #  - msc2946  # (Spaces Summary, see https://github.com/matrix-org/matrix-doc/pull/2946)
 
-# Configuration for the Room Server.
-room_server:
-  # There are no configurable options for the roomserver in a monolith deployment.
-
 # Configuration for the Sync API.
 sync_api:
   # This option controls which HTTP header to inspect to find the real remote IP