code: public Result discard(String name) {
          Cookie cookie = getCookie(name);
          if (cookie != null) {
              cookies.remove(cookie);
              cookies.add(Cookie.builder(cookie).setMaxAge(0).build());
          } else {
              cookies.add(Cookie.builder(name, "").setMaxAge(0).build());
          }
          return this;
      }
docs: Discards the given cookie. The cookie max-age is set to 0, so is going to be invalidated.
  
  @param name the name of the cookie
  @return the current result