Rename renderSecureFields to renderCardComponent since we render the
card components
Remove installments fields from the frontend since the generic component
is going to handle it
Remove all custom frontend field from alternative payment methods since
these are going ti be handled by the generic component
Remove all custom frontend field from one click payment methods since
these are going ti be handled by the generic component
Rename getAdyenBillingAgreements to getAdyenStoredPayments since we move
away from billing agreements (we are going to keep it still, but not
actively use it)