chore: Remove redundant client IP extractions on individual routes

src/api/client/read_marker.rs

@@ -116,7 +116,7 @@ pub(crate) async fn set_read_marker_route(
 /// Sets private read marker and public read receipt EDU.
 pub(crate) async fn create_receipt_route(
 	State(services): State<crate::State>,
-	ClientIp(client_ip): ClientIp,
+	ClientIp(client_ip): ClientIp, // NOTE: Required for updating device metadata
 	body: Ruma<create_receipt::v3::Request>,
 ) -> Result<create_receipt::v3::Response> {
 	let sender_user = body.identity.expect_sender_user()?;