Remove flags for controlling credit card scanner.

components/autofill/core/common/autofill_switches.h

Index: components/autofill/core/common/autofill_switches.h
diff --git a/components/autofill/core/common/autofill_switches.h b/components/autofill/core/common/autofill_switches.h
index 8d419ae0942fc2794d158e148691cf0102f316de..e423cca352bfb6ea30369f9e9e356e19eda7e4d7 100644
--- a/components/autofill/core/common/autofill_switches.h
+++ b/components/autofill/core/common/autofill_switches.h
@@ -12,12 +12,10 @@ namespace switches {
 
 // All switches in alphabetical order. The switches should be documented
 // alongside the definition of their values in the .cc file.
-extern const char kDisableCreditCardScan[];
 extern const char kDisableOfferStoreUnmaskedWalletCards[];
 extern const char kDisableOfferUploadCreditCards[];
 extern const char kDisablePasswordGeneration[];
 extern const char kDisableSingleClickAutofill[];
-extern const char kEnableCreditCardScan[];
 extern const char kEnableOfferStoreUnmaskedWalletCards[];
 extern const char kEnableOfferUploadCreditCards[];
 extern const char kEnablePasswordGeneration[];