Revert 164565 - sync: make scheduling logic and job ownership more obvious.

sync/internal_api/public/sessions/model_neutral_state.cc

Index: sync/internal_api/public/sessions/model_neutral_state.cc
===================================================================
--- sync/internal_api/public/sessions/model_neutral_state.cc	(revision 164641)
+++ sync/internal_api/public/sessions/model_neutral_state.cc	(working copy)
@@ -30,13 +30,5 @@
 
 ModelNeutralState::~ModelNeutralState() {}
 
-bool HasSyncerError(const ModelNeutralState& state) {
-  const bool get_key_error = SyncerErrorIsError(state.last_get_key_result);
-  const bool download_updates_error =
-      SyncerErrorIsError(state.last_download_updates_result);
-  const bool commit_error = SyncerErrorIsError(state.commit_result);
-  return get_key_error || download_updates_error || commit_error;
-}
-
 }  // namespace sessions
 }  // namespace syncer