fixing destructor in InSessionPasswordChangeManager

Removing session activation observer for account id in case they exist

Bug: NA
Change-Id: Iac08d08f2b0dab1cc6eda922267c902b036822a8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2082925Reviewed-by: Roman Sorokin [CET] <rsorokin@chromium.org>
Commit-Queue: Mohammed Abdon <mohammedabdon@chromium.org>
Cr-Commit-Position: refs/heads/master@{#746718}

chrome/browser/chromeos/login/saml/in_session_password_change_manager.cc

@@ -204,7 +204,7 @@ InSessionPasswordChangeManager::~InSessionPasswordChangeManager() {
   // Remove |this| as a SessionActivationObserver.
   auto* session_controller = ash::SessionController::Get();
   if (session_controller) {
-    session_controller->AddSessionActivationObserverForAccountId(
+    session_controller->RemoveSessionActivationObserverForAccountId(
         primary_user_->GetAccountId(), this);
   }
 }