I was able to disable 0 on my slider bar (reset the value to 1 when users click 0), and hide the number 0 with the following codes:
Qualtrics.SurveyEngine.addOnload(function()
{
    if(result>0 && result<10) {
        otherend = 10 - result;
        jQuery(".result").html(result);
        jQuery(".otherend").html(otherend);
    } else if (result == 0) {
        jQuery(".ResultsInput").val(1);
        jQuery(".result").html(1);
        jQuery(".otherend").html(1);
}
});

 jQuery(".numbers li.first").hide();
});

But then, all remaining numbers (1-10) stretches to the left. As a result, grid “1“ on the slider now locates in the middle of the numbers 1 and 2. Is there any solution to this stretching issue? Thanks!