Remove the "card verified" message in PaymentRequest.

components/autofill/core/browser/ui/card_unmask_prompt_controller_impl.cc

Index: components/autofill/core/browser/ui/card_unmask_prompt_controller_impl.cc
diff --git a/components/autofill/core/browser/ui/card_unmask_prompt_controller_impl.cc b/components/autofill/core/browser/ui/card_unmask_prompt_controller_impl.cc
index a7fdb3202347f9f45470235484959101e062cc30..738b5acbd8cddd38155559ec2fd4682a74bff17d 100644
--- a/components/autofill/core/browser/ui/card_unmask_prompt_controller_impl.cc
+++ b/components/autofill/core/browser/ui/card_unmask_prompt_controller_impl.cc
@@ -322,7 +322,8 @@ bool CardUnmaskPromptControllerImpl::InputExpirationIsValid(
 
 base::TimeDelta CardUnmaskPromptControllerImpl::GetSuccessMessageDuration()
     const {
-  return base::TimeDelta::FromMilliseconds(500);
+  return base::TimeDelta::FromMilliseconds(
+      reason_ == AutofillClient::UNMASK_FOR_PAYMENT_REQUEST ? 0 : 500);
 }
 
 }  // namespace autofill