[Smart Lock] Remove NOTREACHED hit by virtual chromeos on Linux.

This NOTREACHED() will be restored after correctly preventing it
from being called. This prevention mechanism will take non-trivial
effort and is not urgent.

Bug: 1152491
Change-Id: I952640c42e10e25fa9bdba6dd543f3593d06f923
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2617026Reviewed-by: James Vecore <vecore@google.com>
Commit-Queue: Ryan Hansberry <hansberry@chromium.org>
Cr-Commit-Position: refs/heads/master@{#841298}

chrome/browser/chromeos/login/easy_unlock/easy_unlock_screenlock_state_handler.cc

@@ -322,6 +322,8 @@ void EasyUnlockScreenlockStateHandler::ShowHardlockUI() {
   }
 
   bool autoshow = true;
+  // TODO(crbug.com/1152491): Only call into SetHasShownLoginDisabledMessage()
+  // if this is a signin screen, not lock screen, context.
   if (hardlock_state_ == LOGIN_DISABLED) {
     // If Signin with Smart Lock is disabled, only automatically show the
     // tooltip if it hasn't been shown yet. See https://crbug.com/848893 for

chromeos/components/proximity_auth/proximity_auth_profile_pref_manager.cc

@@ -175,7 +175,10 @@ void ProximityAuthProfilePrefManager::SetHasShownLoginDisabledMessage(
     bool has_shown) {
   // This is persisted within SyncPrefsToLocalState() instead, since the local
   // state must act as the source of truth for this pref.
-  NOTREACHED();
+  
+  // TODO(crbug.com/1152491): Add a NOTREACHED() to ensure this method is not
+  // called. It is currently incorrectly, though harmlessly, called by virtual
+  // Chrome OS on Linux.
 }
 
 bool ProximityAuthProfilePrefManager::HasShownLoginDisabledMessage() const {