Remove InterfaceRegistry/Provider from service workers

third_party/WebKit/public/platform/modules/background_sync/background_sync.mojom

Index: third_party/WebKit/public/platform/modules/background_sync/background_sync.mojom
diff --git a/third_party/WebKit/public/platform/modules/background_sync/background_sync.mojom b/third_party/WebKit/public/platform/modules/background_sync/background_sync.mojom
index 2958a43bcef3f47dfaabfa5057dfe16bb2055555..32dc8c5ed8ad57290836bfded20ada27321a725b 100644
--- a/third_party/WebKit/public/platform/modules/background_sync/background_sync.mojom
+++ b/third_party/WebKit/public/platform/modules/background_sync/background_sync.mojom
@@ -5,7 +5,6 @@
 module blink.mojom;
 
 import "mojo/common/common_custom_types.mojom";
-import "third_party/WebKit/public/platform/modules/serviceworker/service_worker_event_status.mojom";
 
 enum BackgroundSyncNetworkState {
   ANY,
@@ -47,9 +46,3 @@ interface BackgroundSyncService {
   GetRegistrations(int64 service_worker_registration_id)
       => (BackgroundSyncError err, array<SyncRegistration> registrations);
 };
-
-interface BackgroundSyncServiceClient {
-  Sync(string tag, BackgroundSyncEventLastChance last_chance)
-      => (ServiceWorkerEventStatus status,
-          mojo.common.mojom.Time dispatch_event_time);
-};