[Sync] Update local device info when re-enabled.

components/sync/device_info/device_info_sync_bridge.h

Index: components/sync/device_info/device_info_sync_bridge.h
diff --git a/components/sync/device_info/device_info_sync_bridge.h b/components/sync/device_info/device_info_sync_bridge.h
index 5af1995f7860bfed7216b82880b19f28ea3d9b2d..a499dc5fdf820abe857aba34e6862e489500eef0 100644
--- a/components/sync/device_info/device_info_sync_bridge.h
+++ b/components/sync/device_info/device_info_sync_bridge.h
@@ -138,8 +138,6 @@ class DeviceInfoSyncBridge : public ModelTypeSyncBridge,
   // In charge of actually persiting changes to disk, or loading previous data.
   std::unique_ptr<ModelTypeStore> store_;
 
-  // If |local_device_info_provider_| has initialized.
-  bool has_provider_initialized_ = false;
   // If data has been loaded from the store.
   bool has_data_loaded_ = false;