Remove unused script

Author: samkim

linkcheck-skip.txt

@@ -1,5 +1,4 @@
 .*/_next/.*
-/js/script.js
 https://authzed.com/zanzibar/.*
 https://pkg.go.dev/.*
 https://pprof.me

theme.config.tsx

@@ -33,18 +33,8 @@ const config: DocsThemeConfig = {
     return defaultConfig;
   },
   head: () => {
-    const isProd = process.env.VERCEL_ENV === 'production';
-
     return (
       <>
-        {isProd && (
-          <script
-            defer
-            data-domain="authzed.com"
-            data-api="/api/event"
-            src="/js/script.js"
-          ></script>
-        )}
       </>
     );
   },