Remove PayPal Express Checkout Button on Standard SiteBuilder Shopping Cart

Scenario

User can simply display or remove PayPal button on the Shopping Cart of standard Site Builder, given that there is an existing PayPal account.

Solution

1. Navigate to Commerce > Websites > Website List
2. Website record: Click Edit
3. Click Setup tab
4. Find the Preferences section
5. PayPal Account: Leave it blank for the PayPal button to not display
6. Click Save