Removed unused dependency to components/sync

Change-Id: Ib777e1293012c37b2622be97aca7a8e61ce66d6a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1715272Reviewed-by: Justin Donnelly <jdonnelly@chromium.org>
Commit-Queue: Alexander Yashkin <a-v-y@yandex-team.ru>
Cr-Commit-Position: refs/heads/master@{#680428}

components/country_codes/BUILD.gn

@@ -13,6 +13,5 @@ static_library("country_codes") {
     "//base",
     "//components/pref_registry",
     "//components/prefs",
-    "//components/sync",
   ]
 }