Remove unused ArcApps variable

Change-Id: I3b6c93cc61d66922b92ac12cfcc31e4e528000c0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1731637
Commit-Queue: Nigel Tao <nigeltao@chromium.org>
Reviewed-by: Dominick Ng <dominickn@chromium.org>
Cr-Commit-Position: refs/heads/master@{#683495}

chrome/browser/apps/app_service/arc_apps.cc

@@ -626,7 +626,6 @@ void ArcApps::ConvertAndPublishPackageApps(
   if (!package_info.permissions.has_value()) {
     return;
   }
-  std::vector<apps::mojom::AppPtr> apps;
   ArcAppListPrefs* prefs = ArcAppListPrefs::Get(profile_);
   if (prefs) {
     for (const auto& app_id :