Remove the resolv_integration_test check whether fd is closed or not am: b3505420

    ret = poll(wait_fd, 1, -1);

    revents = wait_fd[0].revents;

    if (revents & POLLIN) {

        int n = resNetworkResult(fd, rcode, buf, bufLen);

        // Verify that resNetworkResult() closed the fd

        char unused;

        EXPECT_EQ(-1, read(fd, &unused, sizeof unused));

        EXPECT_EQ(EBADF, errno);

        return n;

        return resNetworkResult(fd, rcode, buf, bufLen);

    }

    return -1;

}