diff --git a/src/api/client_server/keys.rs b/src/api/client_server/keys.rs
index ba89ece..21f71b6 100644
--- a/src/api/client_server/keys.rs
+++ b/src/api/client_server/keys.rs
@@ -151,18 +151,6 @@ pub async fn upload_signatures_route(
             let key = serde_json::to_value(key)
                 .map_err(|_| Error::BadRequest(ErrorKind::InvalidParam, "Invalid key JSON"))?;
 
-            let is_signed_key = match key.get("usage") {
-                Some(usage) => usage
-                    .as_array()
-                    .map(|usage| !usage.contains(&json!("master")))
-                    .unwrap_or(false),
-                None => true,
-            };
-
-            if !is_signed_key {
-                continue;
-            }
-
             for signature in key
                 .get("signatures")
                 .ok_or(Error::BadRequest(
diff --git a/src/database/key_value/users.rs b/src/database/key_value/users.rs
index 1cabab0..359a072 100644
--- a/src/database/key_value/users.rs
+++ b/src/database/key_value/users.rs
@@ -592,7 +592,6 @@ impl service::users::Data for KeyValueDatabase {
             &serde_json::to_vec(&cross_signing_key).expect("CrossSigningKey::to_vec always works"),
         )?;
 
-        // TODO: Should we notify about this change?
         self.mark_device_key_update(target_id)?;
 
         Ok(())