[CrOS PhoneHub] Fix crash in debug UI

Issue was caused by trying to read a "phoneName" field as part of the
phone status, but that field is part of another API call. This was
mistakenly left in by an earlier CL.

Bug: 1106937
Change-Id: Ia6b2123921955354e96115d8334b915011384ece
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2417291
Commit-Queue: Kyle Horimoto <khorimoto@chromium.org>
Commit-Queue: Regan Hsu <hsuregan@chromium.org>
Auto-Submit: Kyle Horimoto <khorimoto@chromium.org>
Reviewed-by: Regan Hsu <hsuregan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#808088}

chrome/browser/ui/webui/chromeos/multidevice_internals/multidevice_internals_phone_hub_handler.cc

@@ -234,9 +234,6 @@ void MultidevicePhoneHubHandler::HandleSetFakePhoneStatus(
   const base::DictionaryValue* phones_status_dict = nullptr;
   CHECK(args->GetDictionary(0, &phones_status_dict));
 
-  base::string16 phone_name;
-  CHECK(phones_status_dict->GetString("phoneName", &phone_name));
-
   int mobile_status_as_int;
   CHECK(phones_status_dict->GetInteger("mobileStatus", &mobile_status_as_int));
   auto mobile_status = static_cast<phonehub::PhoneStatusModel::MobileStatus>(