Remove redirect

Redirects don't seem to work for docs in the non-primary language.

Author: josh-wong

docusaurus.config.js

@@ -163,10 +163,6 @@ const config = {
             to: '/docs/latest/',
             from: ['/', '/docs'],
           },
-          {
-            to: '/ja-jp/docs/latest/overview',
-            from: ['/ja-jp', '/ja-jp/docs'],
-          },
           {
             to: '/docs/latest/releases/release-support-policy',
             from: '/docs/releases/release-support-policy',