message: Remove redundant blob upload calls
diff: @@ -314,8 +314,8 @@ export class ComponentHost extends EventEmitter implements IComponentDeltaHandle
  file.sha = sha;
  file.url = this.storageService.getRawUrl(sha);
  - await this.blobManager.createBlob(file);
  - this.submit(MessageType.BlobUploaded, await this.blobManager.createBlob(file));
  + const blob = await this.blobManager.createBlob(file);
  + this.submit(MessageType.BlobUploaded, blob);
  return file;
  }
  