Remove unnecessary profile_sync_service.h include

Missed this one in https://crrev.com/c/1477604...

Bug: 924508
Change-Id: I6b7f2690f0efbbf2620b0114d28d8727f442161a
Reviewed-on: https://chromium-review.googlesource.com/c/1478875
Commit-Queue: Mikel Astiz <mastiz@chromium.org>
Auto-Submit: Marc Treib <treib@chromium.org>
Reviewed-by: Mikel Astiz <mastiz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#633741}

chrome/browser/ui/app_list/app_sync_ui_state.cc

@@ -11,7 +11,6 @@
 #include "chrome/browser/sync/profile_sync_service_factory.h"
 #include "chrome/browser/ui/app_list/app_sync_ui_state_factory.h"
 #include "chrome/browser/ui/app_list/app_sync_ui_state_observer.h"
-#include "components/browser_sync/profile_sync_service.h"
 #include "components/prefs/pref_service.h"
 #include "components/sync/driver/sync_service.h"
 #include "components/sync/driver/sync_user_settings.h"