chore(snap): simplify install hook comment

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

Author: drew

snap/hooks/install

@@ -2,15 +2,7 @@
 # SPDX-FileCopyrightText: Copyright (c) 2025-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
 
-# Bootstrap the snap gateway config. Operator-owned configs are never touched,
-# except that the exact config written by earlier snap revisions, which allowed
-# unauthenticated local access, is replaced with the default. The post-refresh
-# hook runs this script too so existing installs are migrated.
-#
-# The default pins the Docker driver and leaves user auth unset: with the
-# wrapper's local TLS bundle, the gateway requires client certificates and
-# enables mTLS user auth automatically. Setting mtls_auth explicitly would fail
-# config preflight, which runs before the local TLS defaults are applied.
+# Ensure the gateway is secured by default with mTLS.
 
 set -eu