Remove unnecessary comment functionality.

data/siteMetadata.js

@@ -22,48 +22,6 @@ const siteMetadata = {
     simpleAnalytics: false, // true or false
     googleAnalyticsId: '', // e.g. UA-000000-2 or G-XXXXXXX
   },
-  comment: {
-    // Select a provider and use the environment variables associated to it
-    // https://vercel.com/docs/environment-variables
-    provider: 'giscus', // supported providers: giscus, utterances, disqus
-    giscusConfig: {
-      // Visit the link below, and follow the steps in the 'configuration' section
-      // https://giscus.app/
-      repo: process.env.NEXT_PUBLIC_GISCUS_REPO,
-      repositoryId: process.env.NEXT_PUBLIC_GISCUS_REPOSITORY_ID,
-      category: process.env.NEXT_PUBLIC_GISCUS_CATEGORY,
-      categoryId: process.env.NEXT_PUBLIC_GISCUS_CATEGORY_ID,
-      mapping: 'pathname', // supported options: pathname, url, title
-      reactions: '1', // Emoji reactions: 1 = enable / 0 = disable
-      // Send discussion metadata periodically to the parent window: 1 = enable / 0 = disable
-      metadata: '0',
-      // theme example: light, dark, dark_dimmed, dark_high_contrast
-      // transparent_dark, preferred_color_scheme, custom
-      theme: 'light',
-      // theme when dark mode
-      darkTheme: 'transparent_dark',
-      // If the theme option above is set to 'custom`
-      // please provide a link below to your custom theme css file.
-      // example: https://giscus.app/themes/custom_example.css
-      //themeURL: '',
-    },
-    utterancesConfig: {
-      // Visit the link below, and follow the steps in the 'configuration' section
-      // https://utteranc.es/
-      repo: process.env.NEXT_PUBLIC_UTTERANCES_REPO,
-      issueTerm: '', // supported options: pathname, url, title
-      label: '', // label (optional): Comment 💬
-      // theme example: github-light, github-dark, preferred-color-scheme
-      // github-dark-orange, icy-dark, dark-blue, photon-dark, boxy-light
-      theme: '',
-      // theme when dark mode
-      darkTheme: '',
-    },
-    disqus: {
-      // https://help.disqus.com/en/articles/1717111-what-s-a-shortname
-      //shortname: process.env.NEXT_PUBLIC_DISQUS_SHORTNAME,
-    },
-  }
 }
 
 module.exports = siteMetadata