revert(api): decouple api from curriculum

This reverts commit c077ffe4b9
via PR #40703

api-server/server/utils/cookieConfig.js

@@ -0,0 +1,6 @@
+export function createCookieConfig(req) {
+  return {
+    signed: !!req.signedCookies,
+    domain: process.env.COOKIE_DOMAIN || 'localhost'
+  };
+}