[Payment Request] Refactors the edit view controller

ios/chrome/browser/ui/payments/credit_card_edit_view_controller_data_source.h

Index: ios/chrome/browser/ui/payments/credit_card_edit_view_controller_data_source.h
diff --git a/ios/chrome/browser/ui/payments/credit_card_edit_view_controller_data_source.h b/ios/chrome/browser/ui/payments/credit_card_edit_view_controller_data_source.h
index f8b72208de9458b9e14b46ed5f224448bfa5821f..406aca3402c671e835df7daaadeeb018fb936505 100644
--- a/ios/chrome/browser/ui/payments/credit_card_edit_view_controller_data_source.h
+++ b/ios/chrome/browser/ui/payments/credit_card_edit_view_controller_data_source.h
@@ -9,34 +9,10 @@
 
 #import "ios/chrome/browser/ui/payments/payment_request_edit_view_controller_data_source.h"
 
-@class CollectionViewItem;
-
-// The possible states the view controller can be in.
-typedef NS_ENUM(NSInteger, CreditCardEditViewControllerState) {
-  // The view controller is used to create a new credit card.
-  CreditCardEditViewControllerStateCreate,
-  // The view controller is used to edit a credit card.
-  CreditCardEditViewControllerStateEdit,
-};
-
 // Data source protocol for CreditCardEditViewController.
 @protocol CreditCardEditViewControllerDataSource<
     PaymentRequestEditViewControllerDataSource>
 
-// The current state of the view controller.
-@property(nonatomic, assign) CreditCardEditViewControllerState state;
-
-// Returns an item that identifies the credit card being edited. May return nil.
-- (CollectionViewItem*)serverCardSummaryItem;
-
-// Returns an item that displays a list of payment method type icons for the
-// accepted payment methods. May return nil.
-- (CollectionViewItem*)acceptedPaymentMethodsItem;
-
-// Returns the billing address label from an autofill profile with the given
-// guid. Returns nil if the profile does not have an address.
-- (NSString*)billingAddressLabelForProfileWithGUID:(NSString*)profileGUID;
-
 // Returns the credit card type icon corresponding to |cardNumber|.
 - (UIImage*)cardTypeIconFromCardNumber:(NSString*)cardNumber;