Remove unnecessary community redirects

The old community pages are deleted, so Astro won't generate those
routes — redirects are not needed.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: em3s

website/astro.config.mjs

@@ -59,16 +59,6 @@ export default defineConfig({
     '/ko/stories/migration-verification/': '/ko/stories/how-we-survived/migration-verification/',
     '/ko/stories/hbase-consistency/': '/ko/stories/how-we-survived/hbase-consistency/',
     '/ko/stories/unified-graph/': '/ko/stories/vision/unified-graph/',
-    '/community/contributing/': '/community/',
-    '/community/governance/': '/community/',
-    '/community/releases/': '/community/',
-    '/community/roadmap/': '/community/',
-    '/community/development/': '/community/',
-    '/ko/community/contributing/': '/ko/community/',
-    '/ko/community/governance/': '/ko/community/',
-    '/ko/community/releases/': '/ko/community/',
-    '/ko/community/roadmap/': '/ko/community/',
-    '/ko/community/development/': '/ko/community/',
   },
   markdown: {
     remarkPlugins: [remarkHeadingId],