Delete unused includes from profiles_state.cc

This CL deletes unused includes of ProfileOAuth2TokenService from
profiles_state.cc. This aids in the conversion of the codebase from
ProfileOAuth2TokenService to IdentityManager.

Bug: 904406
Change-Id: Ibb8f9ca0c7d27b51857ce5932600972db109682b
Reviewed-on: https://chromium-review.googlesource.com/c/1346452Reviewed-by: David Roger <droger@chromium.org>
Reviewed-by: Colin Blundell <blundell@chromium.org>
Commit-Queue: Lowell Manners <lowell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#610393}

chrome/browser/profiles/profiles_state.cc

@@ -34,9 +34,7 @@
 #include <algorithm>
 #include "chrome/browser/profiles/gaia_info_update_service.h"
 #include "chrome/browser/profiles/gaia_info_update_service_factory.h"
-#include "chrome/browser/signin/profile_oauth2_token_service_factory.h"
 #include "chrome/browser/signin/signin_error_controller_factory.h"
-#include "components/signin/core/browser/profile_oauth2_token_service.h"
 #include "components/signin/core/browser/signin_pref_names.h"
 #endif