Revert of [Payment Request] Moves PaymentRequestViewController to :payments_ui

ios/chrome/browser/payments/test_payment_request.mm

Index: ios/chrome/browser/payments/test_payment_request.mm
diff --git a/ios/chrome/browser/payments/test_payment_request.mm b/ios/chrome/browser/payments/test_payment_request.mm
index a2e1e49175a0c46598d8d06804054bcc5c9e5c04..37f20d92feedd925c95e0c030cae8f73b7aca0b9 100644
--- a/ios/chrome/browser/payments/test_payment_request.mm
+++ b/ios/chrome/browser/payments/test_payment_request.mm
@@ -12,18 +12,6 @@
 #error "This file requires ARC support."
 #endif
 
-void TestPaymentRequest::ClearShippingProfiles() {
-  shipping_profiles_.clear();
-}
-
-void TestPaymentRequest::ClearContactProfiles() {
-  contact_profiles_.clear();
-}
-
-void TestPaymentRequest::ClearCreditCards() {
-  credit_cards_.clear();
-}
-
 autofill::RegionDataLoader* TestPaymentRequest::GetRegionDataLoader() {
   return region_data_loader_;
 }