Removed unused methods from |PasswordReuseDetector|.

Change-Id: I76216781bd9336ca8f794ee12e84742b3b416716
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1824268Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Commit-Queue: Matthias Körber <koerber@google.com>
Cr-Commit-Position: refs/heads/master@{#699749}

components/password_manager/core/browser/password_reuse_detector.cc

@@ -208,16 +208,6 @@ size_t PasswordReuseDetector::CheckSavedPasswordReuse(
   return longest_match_len;
 }
 
-void PasswordReuseDetector::UseSyncPasswordHash(
-    base::Optional<PasswordHashData> sync_password_data) {
-  // TODO(crbug.com/841438): Remove this function when the migration is done.
-  if (sync_password_data) {
-    gaia_password_hash_data_list_ =
-        base::make_optional<std::vector<PasswordHashData>>();
-    gaia_password_hash_data_list_->push_back(sync_password_data.value());
-  }
-}
-
 void PasswordReuseDetector::UseGaiaPasswordHash(
     base::Optional<std::vector<PasswordHashData>> password_hash_data_list) {
   gaia_password_hash_data_list_ = std::move(password_hash_data_list);

components/password_manager/core/browser/password_reuse_detector.h

@@ -54,9 +54,6 @@ class PasswordReuseDetector : public PasswordStoreConsumer {
                   const std::string& domain,
                   PasswordReuseDetectorConsumer* consumer);
 
-  // Stores internal |sync_password_data| for password reuse checking.
-  void UseSyncPasswordHash(base::Optional<PasswordHashData> sync_password_data);
-
   // Stores a vector of PasswordHashData for Gaia password reuse checking.
   void UseGaiaPasswordHash(
       base::Optional<std::vector<PasswordHashData>> password_hash_data_list);