Remove experiment support for PasswordManagerSettingsBehaviourChange

components/password_manager/core/browser/password_manager_settings_migration_experiment.cc

Index: components/password_manager/core/browser/password_manager_settings_migration_experiment.cc
diff --git a/components/password_manager/core/browser/password_manager_settings_migration_experiment.cc b/components/password_manager/core/browser/password_manager_settings_migration_experiment.cc
index fa0fdf30a797a6e93e78cd88158d692d78cf58bf..28041664641ea48ba96f518f37b875202e606d75 100644
--- a/components/password_manager/core/browser/password_manager_settings_migration_experiment.cc
+++ b/components/password_manager/core/browser/password_manager_settings_migration_experiment.cc
@@ -17,12 +17,4 @@ bool IsSettingsMigrationActive() {
                           base::CompareCase::INSENSITIVE_ASCII);
 }
 
-bool IsSettingsBehaviorChangeActive() {
-  const char kFieldTrialName[] = "PasswordManagerSettingsBehaviourChange";
-  const char kEnabledGroupName[] =
-      "PasswordManagerSettingsBehaviourChange.Active";
-  return base::FieldTrialList::FindFullName(kFieldTrialName) ==
-         kEnabledGroupName;
-}
-
 }  // namespace password_manager