[cros search service] Remove mojom files

Bug: 1064424,1018613
Change-Id: I203d857986e6c27c2171ecb4148e3ea928a1b758
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2153454
Commit-Queue: Jia Meng <jiameng@chromium.org>
Reviewed-by: Sam McNally <sammc@chromium.org>
Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#760259}

chrome/browser/ui/webui/settings/chromeos/search/search_handler.cc

@@ -11,7 +11,6 @@
 #include "chrome/browser/ui/webui/settings/chromeos/search/search_result_icon.mojom.h"
 #include "chrome/grit/generated_resources.h"
 #include "chrome/services/local_search_service/local_search_service_impl.h"
-#include "chrome/services/local_search_service/public/mojom/types.mojom.h"
 #include "ui/base/l10n/l10n_util.h"
 
 namespace chromeos {