Revert "Experiment to add bank name in autofill ui."

components/autofill/core/browser/webdata/autofill_table.h

Index: components/autofill/core/browser/webdata/autofill_table.h
diff --git a/components/autofill/core/browser/webdata/autofill_table.h b/components/autofill/core/browser/webdata/autofill_table.h
index 2262514842014b00ed42e6bb046551bc86dbee87..161b033fe694a8d366fcf7db3e0ef322cf4b7cb1 100644
--- a/components/autofill/core/browser/webdata/autofill_table.h
+++ b/components/autofill/core/browser/webdata/autofill_table.h
@@ -166,7 +166,6 @@ struct FormFieldData;
 //                      with locally stored cards and generating descriptions.
 //   exp_month          Expiration month: 1-12
 //   exp_year           Four-digit year: 2017
-//   bank_name          Issuer bank name of the credit card.
 //
 // unmasked_credit_cards
 //                      When a masked credit credit card is unmasked and the
@@ -465,7 +464,6 @@ class AutofillTable : public WebDatabaseTable,
   bool MigrateToVersion70AddSyncMetadata();
   bool MigrateToVersion71AddHasConvertedAndBillingAddressIdMetadata();
   bool MigrateToVersion72RenameCardTypeToIssuerNetwork();
-  bool MigrateToVersion73AddMaskedCardBankName();
 
   // Max data length saved in the table, AKA the maximum length allowed for
   // form data.