Update docusaurus.config.ts

Author: Okaetsu

website/docusaurus.config.ts

@@ -72,13 +72,6 @@ const config: Config = {
           position: 'left',
           label: 'Documentation',
         },
-        {
-          href: 'https://discord.gg/SZFBGuWMEU',
-          position: 'right',
-          className: 'header-discord-link',
-          'aria-label': 'Discord Server',
-          'title': 'Join the Discord Server'
-        },
         {
           href: 'https://github.com/Okaetsu/PalSchema',
           position: 'right',