Hide tooltip in surveys on mouse hover

I am using the surveys in SP 2010 to provide feedback on services. Rating level is made from 1-5 with radio checkbox and also I have framed two questions in the survey. Whenever mouse hover is made on the radio buttons the whole tag appears in the yellow standard tooltip.

I have added the questions by using two different tags in Additional Question Settings.

<br>How satisfied are you with the communications you received?<br/><br>How satisfied are you with the timeliness of how the incident was managed?<br/>

How could I possibly hide the tooltip? I am using this js and doesn't work.

<script type="text/javascript">
_spBodyOnLoadFunctionNames.push("disableTooltips");

function disableTooltips(){
    $('.ms-RadioText').removeAttr('title');
}
</script>