Remove one-click checkout demo CTA

Author: rohit-710

appkit/payments/one-click-checkout.mdx

@@ -29,11 +29,3 @@ Perfect for merchants and payment providers who want to **maximize conversions**
 
     We recommend checking with us to ensure that target wallet providers support the necessary functionality. If you are interested in getting early access or learning more, please reach out to us at sales@reown.com.
 </Note>
-
-## Demo
-
-Want to see AppKit Pay One-Click Checkout in action? Try out the live demo to experience Reown AppKit Pay One-Click Checkout flow firsthand. 
-
-<CardGroup cols={2}>
-    <Card icon="flask" title="Try Demo" href="https://appkit-lab.reown.com/library/pay-default/?utm_source=appkit-one-click-checkout&utm_medium=docs&utm_campaign=backlinks" external />
-</CardGroup>