/**
   * Removes all via headers from <tt>request</tt> and replaces them with a new one, equal to the
   * one that was top most.
   *
   * @param request the Request whose branchID we'd like to remove.
   */
  private void removeBranchID(Request request) {

    ViaHeader viaHeader = (ViaHeader) request.getHeader(ViaHeader.NAME);

    viaHeader.removeParameter("branch");
  }