remove the extra module exports line

Author: AaronWDS

lib/connect/examples/validateWebhookMessage.js

@@ -36,6 +36,6 @@ const computeHash = (args) => {
 const isHashValid = (args) => {
   return crypto.timingSafeEqual(Buffer.from(args.verify, 'base64'), Buffer.from(computeHash(args), 'base64'));
 };
-
-module.exports = { computeHash, isHashValid };
 //ds-snippet-end:Connect1Step1
+module.exports = { computeHash, isHashValid };
+