code: public static HttpURLConnection delete(final URI uri, final RequestOptions options, UriQueryBuilder builder,
              final OperationContext opContext) throws IOException, URISyntaxException, StorageException {
          if (builder == null) {
              builder = new UriQueryBuilder();
          }
  
          final HttpURLConnection retConnection = createURLConnection(uri, options, builder, opContext);
          retConnection.setRequestMethod(Constants.HTTP_DELETE);
  
          return retConnection;
      }
docs: Deletes the specified resource. Sign with no length specified.
  
  @param uri
  the request Uri.
  @param timeout
  the timeout for the request
  @param builder
  the UriQueryBuilder for the request
  @param opContext
  an object used to track the execution of the operation
  @return a HttpURLConnection to perform the operation.
  @throws IOException
  if there is an error opening the connection
  @throws URISyntaxException
  if there is an improperly formated URI
  @throws StorageException