Revert of [Password Manager] Send username correction votes

components/autofill/core/common/password_form.h

Index: components/autofill/core/common/password_form.h
diff --git a/components/autofill/core/common/password_form.h b/components/autofill/core/common/password_form.h
index 8bcf44850a8d6f537694bcedfcddb219b24931a7..747162302360371c44a948482130b710068ce08a 100644
--- a/components/autofill/core/common/password_form.h
+++ b/components/autofill/core/common/password_form.h
@@ -16,12 +16,6 @@
 #include "url/origin.h"
 
 namespace autofill {
-
-// Pair of possible username value and field name that contained this value.
-using PossibleUsernamePair = std::pair<base::string16, base::string16>;
-
-// Vector of possible username values and corresponding field names.
-using PossibleUsernamesVector = std::vector<PossibleUsernamePair>;
 
 // The PasswordForm struct encapsulates information about a login form,
 // which can be an HTML form or a dialog with username/password text fields.
@@ -147,7 +141,7 @@
   // determining the username are incorrect. Optional.
   //
   // When parsing an HTML form, this is typically empty.
-  PossibleUsernamesVector other_possible_usernames;
+  std::vector<base::string16> other_possible_usernames;
 
   // The name of the input element corresponding to the current password.
   // Optional (improves scoring).
@@ -307,10 +301,6 @@
                   const std::unique_ptr<PasswordForm>& right) const;
 };
 
-// Converts a vector of possible usernames to string.
-base::string16 OtherPossibleUsernamesToString(
-    const PossibleUsernamesVector& possible_usernames);
-
 // For testing.
 std::ostream& operator<<(std::ostream& os, PasswordForm::Layout layout);
 std::ostream& operator<<(std::ostream& os, const PasswordForm& form);