fix(hono): drop now-unused IHttpServer import (CodeQL)

The anonymous-deny import edit touched the import line, surfacing a
pre-existing unused `IHttpServer` import (referenced only in comments).
Remove it to clear the CodeQL finding.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01ShknNUYoSTspJLBiqorD8V

Author: claude

packages/plugins/plugin-hono-server/src/hono-plugin.ts

@@ -1,7 +1,7 @@
 // Copyright (c) 2025 ObjectStack. Licensed under the Apache-2.0 license.
 
 import {
-    Plugin, PluginContext, IHttpServer, IDataEngine,
+    Plugin, PluginContext, IDataEngine,
     shouldDenyAnonymous, ANONYMOUS_DENY_BODY, ANONYMOUS_DENY_STATUS,
 } from '@objectstack/core';
 import {