Remove mention of debit cards as a billing option (#21033)

Author: jhlodin

src/current/cockroachcloud/billing-management.md

@@ -25,7 +25,7 @@ You can pay for CockroachDB {{ site.data.products.cloud }} by using a credit car
 
 1. On the **Billing** page, select the **Payment details** tab.
 1. Click **Add a credit card** in the **Payment method** field.
-1. In the **Edit payment method** dialog, enter the credit or debit card details.
+1. In the **Edit payment method** dialog, enter the credit card details.
 1. Click **Save card**.
 1. Click **Add a billing email** in the **Billing contact info** section.
 1. In **Edit billing email** enter the email address at which you want to receive invoices for the organization.
@@ -45,7 +45,7 @@ You can pay for CockroachDB {{ site.data.products.cloud }} by using a credit car
 
 1. On the **Billing** page, select the **Payment details** tab.
 1. Click the pencil icon for the **Payment method** field.
-1. In the **Edit payment method** dialog, enter the credit or debit card details.
+1. In the **Edit payment method** dialog, enter the credit card details.
 1. Click **Save card**.
 1. In the **Billing contact info** section, click the pencil icon for the **Billing address** field.
 1. Enter the address associated with your new payment method. This address appears on your monthly invoice and should be the legal address of your home or business.