swarm: push tags integration - request flow

swarm/api: integrate tags to count chunks being split and stored
swarm/api/http: integrate tags in middleware for HTTP `POST` calls and assert chunks being calculated and counted correctly
swarm: remove deprecated and unused code, add swarm hash to DoneSplit signature, remove calls to the api client from the http package

cmd/swarm/swarm-smoke/upload_and_sync.go

@@ -255,7 +255,7 @@ func getAllRefs(testData []byte) (storage.AddressCollection, error) {
 		return nil, fmt.Errorf("unable to create temp dir: %v", err)
 	}
 	defer os.RemoveAll(datadir)
-	fileStore, err := storage.NewLocalFileStore(datadir, make([]byte, 32))
+	fileStore, err := storage.NewLocalFileStore(datadir, make([]byte, 32), chunk.NewTags())
 	if err != nil {
 		return nil, err
 	}